/*
******************************************************
 scripts.js - Javascript functions for www.ntsbdc.org
 Written by Carl Reynolds for
 North Texas Small Business Development Center		
 Bill Priest Campus of El Centro Community College, Dallas, TX	
******************************************************		*/		


var bn = navigator.appName;
var vn = navigator.appVersion;

var ie5 = (document.getElementById && document.all);
var ns6 = (document.getElementById && !document.all);

var sHeight = screen.height;

function resCheck()				// run after loading elements that need resizing
{
	if(sHeight<700){			// if resolution is 800x600 or less, change classnames for each element that needs resizing
		document.getElementById('topBannerImg').src="images/sbdc_banner2_800.jpg"			// change banner image
		document.getElementById('topBannerImg').className="bannerWidth800";				// class from default.css
		document.getElementById('mainHeading').className="head1800";						// class from page calling function
		document.getElementById('hGrad').className="horGrad800";							// class from page calling function
		document.getElementById('tblContent').className="pageWidth800";					// class from default.css
	}
}

function resCheckFaq()				// run after loading elements that need resizing
{
	if(sHeight<700){			// if resolution is 800x600 or less, change classnames for each element that needs resizing
		document.getElementById('topBannerImg').src="images/sbdc_banner2_800.jpg"			// change banner image
		document.getElementById('topBannerImg').className="bannerWidth800";				// class from default.css
		document.getElementById('mainHeading').className="head1800";						// class from page calling function
		document.getElementById('hGrad').className="horGrad800";							// class from page calling function
	}
}

/*	******************************************************
	Open window w/o toolbars for success stories
	******************************************************	*/

function openSuccessWindow(htmlFile)
{
	window.open (htmlFile, 'successwindow', config='height=415px, width=785px, toolbar=no, menubar=no, scrollbars=yes, resizable=yes, location=no, directories=no, status=no');
}


/*	******************************************************
	Open window w/o toolbars for photo pages
	******************************************************	*/

function openPhotoWindow(htmlFile)
{
	window.open (htmlFile, 'photowindow', config='height=495px, width=770px, toolbar=no, menubar=no, scrollbars=yes, resizable=no, location=no, directories=no, status=no');
}

/*	******************************************************
	Open window w/o toolbars for login page
	******************************************************	*/

function openLoginWindow(htmlFile)
{
	window.open (htmlFile, 'loginwindow', config='height=520px, width=770px, toolbar=no, menubar=no, scrollbars=yes, resizable=yes, location=no, directories=no, status=no');
}

/*	******************
	Intranet login script
	******************	*/

function Fill_In_The_Fields()		// this is for the intranet password field - use "ntsbdc" to enter intranet, use "buffalo" to add/delete/edit events in Training Calendar
	{
	var passwd = document.loginform.passbox.value

	if (passwd == "ntsbdc")	
		window.open('intranet/home.asp');
	else
		if(passwd == "buffalo")
			window.location.replace('calendar/calendar.asp?login=yes');
		else
			document.writeln("<p align='CENTER'><FONT SIZE='7'>Login Incorrect - Please try again.</p>")
	}


/*	**************************************
	Layer hide/show for map.shtml
	**************************************	*/

var locArray = new Array("bell","coryell","bosque","falls","hill","johnson","mclennan","ellis","freestone","limestone","navarro","anderson","henderson","kaufman","vanzandt","rains","cherokee","nacogdoches","sabine","sanaugustine","shelby","smith","wood","gregg","harrison","marion","panola","rusk","upshur","bowie","camp","cass","franklin","morris","titus","delta","hopkins","hunt","lamar","redriver","grayson","fannin","cooke","denton","montague","tarrant","dallas","rockwall","collin","bsw");

function showSBDC(layerID) {													// More layer show/hide... see comments in showLayer() function above
	for (i=0; i<locArray.length; i++) {			
		if (document.getElementById) {		
			document.getElementById(locArray[i]).style.visibility = "hidden";
		}
		else if (document.layers) {		
			document.layers[locArray[i]].visibility = "hide";			
		}
		else {
			document.all(locArray[i]).style.visibility = "hidden";
		}			
	}	
	if (layerID != "") {
		if (document.getElementById || document.all) {
			if (document.all) layerVis = document.all(layerID).style;		
			else layerVis = document.getElementById(layerID).style;
      
			visShow = "visible";
			visHide = "hidden";
		}	
		else if (document.layers) {
			layerVis = document.layers[layerID];	
			visShow = "show";
			visHide = "hide";	
		}
    
		if (layerVis == visShow) {
			layerVis.visibility = visHide;		
		}
		else {
			layerVis.visibility = visShow;
		}
	}	
}

/*function rollOver(e,state)
{
	if (document.all)
		source4=event.srcElement
	else if (document.getElementById)
		source4=e.target
		if (source4.className=="menuBorder")
			source4.style.borderStyle=state
		else
		{	while (source4.tagName!="TABLE")
			{	source4=document.getElementById? source4.parentNode : source4.parentElement
				if (source4.className=="menuBorder")
					source4.style.borderStyle=state
			}
		}
}*/

/*	*************************
	random success stories code
	*************************	*/

function RandomSuccessStory()
{
	var RandomNumber = Math.round(17 * Math.random()) + 1							// Supply random number with which to choose success story to display
	ChangeSuccessStory(document.getElementById('ss' + RandomNumber).innerHTML)		// Hand chosen success story's elementID to ChangeSuccessStory() function
	window.setTimeout("RandomSuccessStory()", 15000);								// Repeat every 15 seconds, 1000 per sec
}	

function ChangeSuccessStory(divContent) 
{ 
    	if(document.getElementById)													// If browser is DOM-compatible
	{ 
        	document.getElementById('success').innerHTML = divContent; 				// swap success stories' content with that of the story chosen in 
	} 																				// RandomSuccessStory() function
} 


// called from the home page's <body> tag - was used to remove "Loading" message when page is loaded - now only starts random switching of success stories
function Loaded()
{
//    	if(ie5 || ns6) 
//	{
//		document.getElementById("loading").style.visibility = "hidden";
//   	}
	RandomSuccessStory();															//call function to randomly swap success stories
}

/*
var ie5 = (document.getElementById && document.all);
var ns6 = (document.getElementById && !document.all);

var rightPos = 10;  // how much pixel before right 
var bottomPos = 10; // how much pixel before bottom 

function statik(){
    	if(ie5){
        	pageYOffset = document.body.scrollTop;
		innerWidth = document.body.offsetWidth;
		innerHeight = document.body.offsetHeight;
	}
	if(ie5 || ns6){
        	statikLayer = document.getElementById('stk');
		statikLayer.style.right = 0 + rightPos;
		statikLayer.style.visibility = 'visible';
		statikLayer.style.top = (innerHeight - statikLayer.offsetHeight - bottomPos) + pageYOffset;
		setTimeout ('statik()', 10);
	}
}
*/

// functions for marque state awards

timerID = null;

function scrollInit(speed)
{
   	if (document.getElementById)
		{
        	cnt = document.getElementById("awardsBannerCont");
        	txt = document.getElementById("awardsBannerText");
        	txt.style.top = 0;
			timerID = setTimeout("scrollDown("+speed+")",30)
    		}
}
        
function scrollDown(speed)
{
    	if(document.getElementById)
		{
       	if(parseInt(txt.style.top) < -540)
			{ txt.style.top = 0;}
		txt.style.top = parseInt(txt.style.top) - speed + "px";
		timerID = setTimeout("scrollDown("+speed+")",100)
   		}
}

// ASBDC search box coding
  // viewMore() is used to display the second page of search results containing all centers in a state ordered
  // by distance away when the user searches by zip code
  function viewMore()
  {
  	document.myform.submit();
  }
  
  // displayZip() is called to show the text box in which the user may enter a zip code and hide the state
  // dropdown menu
  function displayZip()
  {
  	var zipBox = document.getElementById('searchByZip');
  	var stateBox = document.getElementById('searchByState');
  	if (zipBox.style.display != 'block')
  	{
  		stateBox.style.display = 'none';
  		zipBox.style.display = 'block';
  		document.getElementById('zipform').zipcode.focus();
  	}
  }
  
  // displayState() is called to display the state dropdown menu and hide the text box for the zip search
  function displayState()
  {
  	var zipBox = document.getElementById('searchByZip');
  	var stateBox = document.getElementById('searchByState');
  	if (stateBox.style.display != 'block')
  	{
  		zipBox.style.display = 'none';
  		stateBox.style.display = 'block';
  		document.getElementById('stateform').state.focus();
  	}
  }
  
  function enforceNumbersOnly(evt, form)
  {
  	// Determine what the field value will be.
  	var result = form.zipcode.value;
  	var charCode = (evt && evt.charCode) ? evt.charCode : false;
  	var keyCode = (evt) ? evt.keyCode : window.event.keyCode;
  	if (charCode && result.length < 5) result += String.fromCharCode(charCode);
  	
  	if (keyIsAlwaysAllowed(keyCode) ||
  		evt.altKey || evt.ctrlKey || evt.metaKey) return true;
  	
  	// Enter key should be able to submit form if current ZIP code is valid.
  	if (keyCode == 13 && zipIsValid(result)) return true;
  	
  	if (!charCode) return false;
  	return !isNaN(result) && parseInt(result) >= 0 && result.indexOf(".") < 0;
  	
  }
  
  function keyIsAlwaysAllowed(keyCode)
  {
  	return keyCode == 8 || keyCode == 9 || keyCode == 46 ||
  		(keyCode > 47 && keyCode < 58) ||
  		(keyCode > 36 && keyCode < 41); // (keyCode > 95 && keyCode < 106)
  }
  
  function zipIsValid(zip)
  {
  	return !isNaN(zip) && parseInt(zip) >= 0 && zip.indexOf(".") < 0 &&
  			zip.length == 5;
  }
  
  function goButton(form)
  {
  	var go = document.getElementById('zipSearch-go');
  	if (form.id == 'zipform')
  	{
  		go.disabled = !zipIsValid(form.zipcode.value);
  	}
  	else
  	{
  		if (form.state.value != 'Select State')
  		{
  			document.stateform.submit();
  		}
  	}
  }
  
  function setZipFormStatus()
  {
  	var go = document.getElementById('zipSearch-go');
  	var zip = document.getElementById('zipform').zipcode.value;
  	go.disabled = !zipIsValid(zip);
  	if (document.getElementById('searchType-state').checked)
  	{
  		displayState();
  	}
  }
  
  function check()
  {
  	setZipFormStatus();
  }
  
  // -------------------------------------------------------------------
// Switch Content Script- By Dynamic Drive, available at: http://www.dynamicdrive.com
// Created: Jan 5th, 2007
// April 5th, 07: Added ability to persist content states by x days versus just session only
// March 27th, 08': Added ability for certain headers to get its contents remotely from an external file via Ajax (2 variables below to customize)
// -------------------------------------------------------------------

var switchcontent_ajax_msg='<em>Loading information...</em>' //Customize message to show while fetching Ajax content (if applicable)
var switchcontent_ajax_bustcache=true //Bust cache and refresh fetched Ajax contents when page is reloaded/ viewed again?

function switchcontent(className, filtertag){
	this.className=className
	this.collapsePrev=false //Default: Collapse previous content each time
	this.persistType="none" //Default: Disable persistence
	//Limit type of element to scan for on page for switch contents if 2nd function parameter is defined, for efficiency sake (ie: "div")
	this.filter_content_tag=(typeof filtertag!="undefined")? filtertag.toLowerCase() : ""
	this.ajaxheaders={} //object to hold path to ajax content for corresponding header (ie: ajaxheaders["header1"]='external.htm')
}

switchcontent.prototype.setStatus=function(openHTML, closeHTML){ //PUBLIC: Set open/ closing HTML indicator. Optional
	this.statusOpen=openHTML
	this.statusClosed=closeHTML
}

switchcontent.prototype.setColor=function(openColor, closeColor){ //PUBLIC: Set open/ closing color of switch header. Optional
	this.colorOpen=openColor
	this.colorClosed=closeColor
}

switchcontent.prototype.setPersist=function(bool, days){ //PUBLIC: Enable/ disable persistence. Default is false.
	if (bool==true){ //if enable persistence
		if (typeof days=="undefined") //if session only
			this.persistType="session"
		else{ //else if non session persistent
			this.persistType="days"
			this.persistDays=parseInt(days)
		}
	}
	else
		this.persistType="none"
}

switchcontent.prototype.collapsePrevious=function(bool){ //PUBLIC: Enable/ disable collapse previous content. Default is false.
	this.collapsePrev=bool
}

switchcontent.prototype.setContent=function(index, filepath){ //PUBLIC: Set path to ajax content for corresponding header based on header index
	this.ajaxheaders["header"+index]=filepath
}

switchcontent.prototype.sweepToggle=function(setting){ //PUBLIC: Expand/ contract all contents method. (Values: "contract"|"expand")
	if (typeof this.headers!="undefined" && this.headers.length>0){ //if there are switch contents defined on the page
		for (var i=0; i<this.headers.length; i++){
			if (setting=="expand")
				this.expandcontent(this.headers[i]) //expand each content
			else if (setting=="contract")
				this.contractcontent(this.headers[i]) //contract each content
		}
	}
}


switchcontent.prototype.defaultExpanded=function(){ //PUBLIC: Set contents that should be expanded by default when the page loads (ie: defaultExpanded(0,2,3)). Persistence if enabled overrides this setting.
	var expandedindices=[] //Array to hold indices (position) of content to be expanded by default
	//Loop through function arguments, and store each one within array
	//Two test conditions: 1) End of Arguments array, or 2) If "collapsePrev" is enabled, only the first entered index (as only 1 content can be expanded at any time)
	for (var i=0; (!this.collapsePrev && i<arguments.length) || (this.collapsePrev && i==0); i++)
		expandedindices[expandedindices.length]=arguments[i]
	this.expandedindices=expandedindices.join(",") //convert array into a string of the format: "0,2,3" for later parsing by script
}


//PRIVATE: Sets color of switch header.

switchcontent.prototype.togglecolor=function(header, status){
	if (typeof this.colorOpen!="undefined")
		header.style.color=status
}


//PRIVATE: Sets status indicator HTML of switch header.

switchcontent.prototype.togglestatus=function(header, status){
	if (typeof this.statusOpen!="undefined")
		header.firstChild.innerHTML=status
}


//PRIVATE: Contracts a content based on its corresponding header entered

switchcontent.prototype.contractcontent=function(header){
	var innercontent=document.getElementById(header.id.replace("-title", "")) //Reference content container for this header
	innercontent.style.display="none"
	this.togglestatus(header, this.statusClosed)
	this.togglecolor(header, this.colorClosed)
}


//PRIVATE: Expands a content based on its corresponding header entered

switchcontent.prototype.expandcontent=function(header){
	var innercontent=document.getElementById(header.id.replace("-title", ""))
	if (header.ajaxstatus=="waiting"){//if this is an Ajax header AND remote content hasn't already been fetched
		switchcontent.connect(header.ajaxfile, header)
	}
	innercontent.style.display="block"
	this.togglestatus(header, this.statusOpen)
	this.togglecolor(header, this.colorOpen)
}

// -------------------------------------------------------------------
// PRIVATE: toggledisplay(header)- Toggles between a content being expanded or contracted
// If "Collapse Previous" is enabled, contracts previous open content before expanding current
// -------------------------------------------------------------------

switchcontent.prototype.toggledisplay=function(header){
	var innercontent=document.getElementById(header.id.replace("-title", "")) //Reference content container for this header
	if (innercontent.style.display=="block")
		this.contractcontent(header)
	else{
		this.expandcontent(header)
		if (this.collapsePrev && typeof this.prevHeader!="undefined" && this.prevHeader.id!=header.id) // If "Collapse Previous" is enabled and there's a previous open content
			this.contractcontent(this.prevHeader) //Contract that content first
	}
	if (this.collapsePrev)
		this.prevHeader=header //Set current expanded content as the next "Previous Content"
}


// -------------------------------------------------------------------
// PRIVATE: collectElementbyClass()- Searches and stores all switch contents (based on shared class name) and their headers in two arrays
// Each content should carry an unique ID, and for its header, an ID equal to "CONTENTID-TITLE"
// -------------------------------------------------------------------

switchcontent.prototype.collectElementbyClass=function(classname){ //Returns an array containing DIVs with specified classname
	var classnameRE=new RegExp("(^|\\s+)"+classname+"($|\\s+)", "i") //regular expression to screen for classname within element
	this.headers=[], this.innercontents=[]
	if (this.filter_content_tag!="") //If user defined limit type of element to scan for to a certain element (ie: "div" only)
		var allelements=document.getElementsByTagName(this.filter_content_tag)
	else //else, scan all elements on the page!
		var allelements=document.all? document.all : document.getElementsByTagName("*")
	for (var i=0; i<allelements.length; i++){
		if (typeof allelements[i].className=="string" && allelements[i].className.search(classnameRE)!=-1){
			if (document.getElementById(allelements[i].id+"-title")!=null){ //if header exists for this inner content
				this.headers[this.headers.length]=document.getElementById(allelements[i].id+"-title") //store reference to header intended for this inner content
				this.innercontents[this.innercontents.length]=allelements[i] //store reference to this inner content
			}
		}
	}
}


//PRIVATE: init()- Initializes Switch Content function (collapse contents by default unless exception is found)

switchcontent.prototype.init=function(){
	var instanceOf=this
	this.collectElementbyClass(this.className) //Get all headers and its corresponding content based on shared class name of contents
	if (this.headers.length==0) //If no headers are present (no contents to switch), just exit
		return
	//If admin has changed number of days to persist from current cookie records, reset persistence by deleting cookie
	if (this.persistType=="days" && (parseInt(switchcontent.getCookie(this.className+"_dtrack"))!=this.persistDays))
		switchcontent.setCookie(this.className+"_d", "", -1) //delete cookie
	// Get ids of open contents below. Four possible scenerios:
	// 1) Session only persistence is enabled AND corresponding cookie contains a non blank ("") string
	// 2) Regular (in days) persistence is enabled AND corresponding cookie contains a non blank ("") string
	// 3) If there are contents that should be enabled by default (even if persistence is enabled and this IS the first page load)
	// 4) Default to no contents should be expanded on page load ("" value)
	var opencontents_ids=(this.persistType=="session" && switchcontent.getCookie(this.className)!="")? ','+switchcontent.getCookie(this.className)+',' : (this.persistType=="days" && switchcontent.getCookie(this.className+"_d")!="")? ','+switchcontent.getCookie(this.className+"_d")+',' : (this.expandedindices)? ','+this.expandedindices+',' : ""
	for (var i=0; i<this.headers.length; i++){ //BEGIN FOR LOOP
		if (typeof this.ajaxheaders["header"+i]!="undefined"){ //if this is an Ajax header
			this.headers[i].ajaxstatus='waiting' //two possible statuses: "waiting" and "loaded"
			this.headers[i].ajaxfile=this.ajaxheaders["header"+i]
		}
		if (typeof this.statusOpen!="undefined") //If open/ closing HTML indicator is enabled/ set
			this.headers[i].innerHTML='<span class="status"></span>'+this.headers[i].innerHTML //Add a span element to original HTML to store indicator
		if (opencontents_ids.indexOf(','+i+',')!=-1){ //if index "i" exists within cookie string or default-enabled string (i=position of the content to expand)
			this.expandcontent(this.headers[i]) //Expand each content per stored indices (if ""Collapse Previous" is set, only one content)
			if (this.collapsePrev) //If "Collapse Previous" set
			this.prevHeader=this.headers[i]  //Indicate the expanded content's corresponding header as the last clicked on header (for logic purpose)
		}
		else //else if no indices found in stored string
			this.contractcontent(this.headers[i]) //Contract each content by default
		this.headers[i].onclick=function(){instanceOf.toggledisplay(this)}
	} //END FOR LOOP
	switchcontent.dotask(window, function(){instanceOf.rememberpluscleanup()}, "unload") //Call persistence method onunload
}


// -------------------------------------------------------------------
// PRIVATE: rememberpluscleanup()- Stores the indices of content that are expanded inside session only cookie
// If "Collapse Previous" is enabled, only 1st expanded content index is stored
// -------------------------------------------------------------------

//Function to store index of opened ULs relative to other ULs in Tree into cookie:
switchcontent.prototype.rememberpluscleanup=function(){
	//Define array to hold ids of open content that should be persisted
	//Default to just "none" to account for the case where no contents are open when user leaves the page (and persist that):
	var opencontents=new Array("none")
	for (var i=0; i<this.innercontents.length; i++){
		//If persistence enabled, content in question is expanded, and either "Collapse Previous" is disabled, or if enabled, this is the first expanded content
		if (this.persistType!="none" && this.innercontents[i].style.display=="block" && (!this.collapsePrev || (this.collapsePrev && opencontents.length<2)))
			opencontents[opencontents.length]=i //save the index of the opened UL (relative to the entire list of ULs) as an array element
		this.headers[i].onclick=null //Cleanup code
	}
	if (opencontents.length>1) //If there exists open content to be persisted
		opencontents.shift() //Boot the "none" value from the array, so all it contains are the ids of the open contents
	if (typeof this.statusOpen!="undefined")
		this.statusOpen=this.statusClosed=null //Cleanup code
	if (this.persistType=="session") //if session only cookie set
		switchcontent.setCookie(this.className, opencontents.join(",")) //populate cookie with indices of open contents: classname=1,2,3,etc
	else if (this.persistType=="days" && typeof this.persistDays=="number"){ //if persistent cookie set instead
		switchcontent.setCookie(this.className+"_d", opencontents.join(","), this.persistDays) //populate cookie with indices of open contents
		switchcontent.setCookie(this.className+"_dtrack", this.persistDays, this.persistDays) //also remember number of days to persist (int)
	}
}


// -------------------------------------------------------------------
// A few utility functions below:
// -------------------------------------------------------------------


switchcontent.dotask=function(target, functionref, tasktype){ //assign a function to execute to an event handler (ie: onunload)
	var tasktype=(window.addEventListener)? tasktype : "on"+tasktype
	if (target.addEventListener)
		target.addEventListener(tasktype, functionref, false)
	else if (target.attachEvent)
		target.attachEvent(tasktype, functionref)
}

switchcontent.connect=function(pageurl, header){
	var page_request = false
	var bustcacheparameter=""
	if (window.ActiveXObject){ //Test for support for ActiveXObject in IE first (as XMLHttpRequest in IE7 is broken)
		try {
		page_request = new ActiveXObject("Msxml2.XMLHTTP")
		} 
		catch (e){
			try{
			page_request = new ActiveXObject("Microsoft.XMLHTTP")
			}
			catch (e){}
		}
	}
	else if (window.XMLHttpRequest) // if Mozilla, Safari etc
		page_request = new XMLHttpRequest()
	else
		return false
	page_request.onreadystatechange=function(){switchcontent.loadpage(page_request, header)}
	if (switchcontent_ajax_bustcache) //if bust caching of external page
		bustcacheparameter=(pageurl.indexOf("?")!=-1)? "&"+new Date().getTime() : "?"+new Date().getTime()
	page_request.open('GET', pageurl+bustcacheparameter, true)
	page_request.send(null)
}

switchcontent.loadpage=function(page_request, header){
	var innercontent=document.getElementById(header.id.replace("-title", "")) //Reference content container for this header
	innercontent.innerHTML=switchcontent_ajax_msg //Display "fetching page message"
	if (page_request.readyState == 4 && (page_request.status==200 || window.location.href.indexOf("http")==-1)){
		innercontent.innerHTML=page_request.responseText
		header.ajaxstatus="loaded"
	}
}

switchcontent.getCookie=function(Name){ 
	var re=new RegExp(Name+"=[^;]+", "i"); //construct RE to search for target name/value pair
	if (document.cookie.match(re)) //if cookie found
		return document.cookie.match(re)[0].split("=")[1] //return its value
	return ""
}

switchcontent.setCookie=function(name, value, days){
	if (typeof days!="undefined"){ //if set persistent cookie
		var expireDate = new Date()
		var expstring=expireDate.setDate(expireDate.getDate()+days)
		document.cookie = name+"="+value+"; expires="+expireDate.toGMTString()
	}
	else //else if this is a session only cookie
		document.cookie = name+"="+value
}