// Animated Collapsible DIV- Author: Dynamic Drive (http://www.dynamicdrive.com)
// Updated December 18th, 2007 by Joel Turner - added code to control animated gifs
// Updated December 15th, 2007 by Joel Turner - commented out alerts.. reformatted the code for readability
// Updated Aug 1st, 07'. Fixed bug with "block" parameter not working when persist is enabled
// Updated June 27th, 07'. Added ability for a DIV to be initially expanded.

var uniquepageid=window.location.href.replace("http://"+window.location.hostname, "").replace(/^\//, "") //get current page path and name, used to uniquely identify this page for persistence feature

function animatedcollapse(divId, imageId, animatetime, persistexpand, initstate)
{
	this.divId=divId
	this.imageId=imageId
	this.imageObj=document.getElementById(imageId)
	this.divObj=document.getElementById(divId)
	this.divObj.style.overflow="hidden"
	this.timelength=animatetime
	this.initstate=(typeof initstate!="undefined" && initstate=="block")? "block" : "contract"
	this.isExpanded=animatedcollapse.getCookie(uniquepageid+"-"+divId) //"yes" or "no", based on cookie value
	this.contentheight=parseInt(this.divObj.style.height)
	var thisobj=this
	if (isNaN(this.contentheight))
	{ //if no CSS "height" attribute explicitly defined, get DIV's height on window.load
		animatedcollapse.dotask(window, function(){thisobj._getheight(persistexpand)}, "load")
		if (!persistexpand && this.initstate=="contract" || persistexpand && this.isExpanded!="yes" && this.isExpanded!="")
		{ //Hide DIV (unless div should be expanded by default, OR persistence is enabled and this DIV should be expanded)
			this.divObj.style.visibility="hidden" //hide content (versus collapse) until we can get its height
		}
	}
	else if (!persistexpand && this.initstate=="contract" || persistexpand && this.isExpanded!="yes" && this.isExpanded!="")
	{ //Hide DIV (unless div should be expanded by default, OR persistence is enabled and this DIV should be expanded)
		this.divObj.style.height=0 //just collapse content if CSS "height" attribute available
	}
	if (persistexpand)
	{
		animatedcollapse.dotask(window, function(){animatedcollapse.setCookie(uniquepageid+"-"+thisobj.divId, thisobj.isExpanded)}, "unload")
	}
}

animatedcollapse.prototype._getheight=function(persistexpand)
{
	this.contentheight=this.divObj.offsetHeight
	if (!persistexpand && this.initstate=="contract" || persistexpand && this.isExpanded!="yes")
	{ //Hide DIV (unless div should be expanded by default, OR persistence is enabled and this DIV should be expanded)
		this.divObj.style.height=0 //collapse content
		this.divObj.style.visibility="visible"
	}
	else
	{ //else if persistence is enabled AND this content should be expanded, define its CSS height value so slideup() has something to work with
		this.divObj.style.height=this.contentheight+"px"
	}
}


animatedcollapse.prototype._slideengine=function(direction)
{
	var elapsed=new Date().getTime()-this.startTime //get time animation has run
	var thisobj=this
	if (elapsed<this.timelength)
	{ //if time run is less than specified length
		var distancepercent=(direction=="down")? animatedcollapse.curveincrement(elapsed/this.timelength) : 1-animatedcollapse.curveincrement(elapsed/this.timelength)
		this.divObj.style.height=distancepercent * this.contentheight +"px"
		this.runtimer=setTimeout(function(){thisobj._slideengine(direction)}, 10)
	}
	else
	{ //if animation finished
		this.divObj.style.height=(direction=="down")? this.contentheight+"px" : 0
		this.isExpanded=(direction=="down")? "yes" : "no" //remember whether content is expanded or not
		this.runtimer=null
	}
}


animatedcollapse.prototype.slidedown=function()
{
	if (typeof this.runtimer=="undefined" || this.runtimer==null)
	{ //if animation isn't already running or has stopped running
		if (isNaN(this.contentheight)) //if content height not available yet (until window.onload)
		{
			// alert("Please wait until document has fully loaded then click again")
		}
		else if (parseInt(this.divObj.style.height)==0)
		{ //if content is collapsed
			this.startTime=new Date().getTime() //Set animation start time
			this.imageObj.src='/images/LightBlueRotateOpen.gif#' + Math.random()
			this._slideengine("down")
		}
	}
}

animatedcollapse.prototype.slideup=function(){
	if (typeof this.runtimer=="undefined" || this.runtimer==null)
	{ //if animation isn't already running or has stopped running
		if (isNaN(this.contentheight)) //if content height not available yet (until window.onload)
		{
			// alert("Please wait until document has fully loaded then click again")
		}
		else if (parseInt(this.divObj.style.height)==this.contentheight)
		{ //if content is expanded
			//alert(this.divId + ":parseInt(this.divObj.style.height) = " + parseInt(this.divObj.style.height))
			//alert(this.divId + ":this.contentheight = " + this.contentheight)
			this.startTime=new Date().getTime()
			this.imageObj.src='/images/LightBlueRotateClose.gif#' + Math.random()
			this._slideengine("up")
		}
	}
}

animatedcollapse.prototype.slideit=function()
{
	if (isNaN(this.contentheight)) //if content height not available yet (until window.onload)
	{
			// alert("Please wait until document has fully loaded then click again")
	}
	else if (parseInt(this.divObj.style.height)==0)
	{
			this.slidedown()
	}
	else if (parseInt(this.divObj.style.height)==this.contentheight)
	{
			this.slideup()
	}
}

// -------------------------------------------------------------------
// A few utility functions below:
// -------------------------------------------------------------------

animatedcollapse.curveincrement=function(percent)
{
	return (1-Math.cos(percent*Math.PI)) / 2 //return cos curve based value from a percentage input
}


animatedcollapse.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)
	}
}

animatedcollapse.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 ""
}

animatedcollapse.setCookie=function(name, value)
{
		document.cookie = name+"="+value
}




// New Alternate Row Table Formatter - Author: Joel Turner
// Updated January 9th, 2007 by Joel Turner - changed from assigning alterating classes to modifying the background color directly
// Updated April - May by Joel Turner - lots of tweaks and changes to do rounded corners and other styling
// Updated July 2009 by Joel Turner - more tweaks

function alternate(id)
{
	if(document.getElementsByTagName)
	{  
		var table = document.getElementById(id);  
		var rows = table.getElementsByTagName("tr");  
		var icopy = 0;
		for(i = 0; i < rows.length; i++)
		{          
			if(i == 0)
			{
				rows[i].id = "TableHeader";
				var HeaderCells = rows[i].getElementsByTagName("th"); 
				var jcopy = 0;
				for(j = 0; j < HeaderCells.length; j++)
				{          
					if(j == 0)
					{
						HeaderCells[j].id = "LeftHeaderCell";
					}
					jcopy = j;
				}
				HeaderCells[jcopy].id = "RightHeaderCell";
			}
			else
			{
				if(i % 2 == 0)
				{
					rows[i].onmouseover=function(){this.id="TableHighlightedRow";}
					rows[i].onmouseout=function(){this.id="TableOddRow";}
					rows[i].id = "TableOddRow";
				}
				else
				{
					rows[i].onmouseover=function(){this.id="TableHighlightedRow";}
					rows[i].onmouseout=function(){this.id="TableEvenRow";}
					rows[i].id = "TableEvenRow";
				}      
			}      
			icopy = i;
		}

		var FooterTHCells = rows[icopy].getElementsByTagName("th"); 
		var FooterCells = rows[icopy].getElementsByTagName("td"); 
		if(typeof(FooterTHCells[0]) == "undefined")
		{
			if(icopy % 2 == 0)
			{
				FooterCells[0].id = "LeftOddFooterCell";
			}
			else
			{
				FooterCells[0].id = "LeftEvenFooterCell";
			}      
		}
		else
		{
			if(icopy % 2 == 0)
			{
				FooterTHCells[0].id = "LeftOddFooterCell";
			}
			else
			{
				FooterTHCells[0].id = "LeftEvenFooterCell";
			}      
 		}
		
		var kcopy = 0;
		for(k = 0; k < FooterCells.length; k++)
		{          
			kcopy = k;
		}
		if(icopy % 2 == 0)
		{
			FooterCells[kcopy].id = "RightOddFooterCell";
		}
		else
		{
			FooterCells[kcopy].id = "RightEvenFooterCell";
		}      
	}
}

function FormValidate(form)
{
   if(form.data25.value.trim() == "")
   {
      alert("Empty Emails are not allowed.");
   }
   else if(form.data25.value.trim().length < 10)
   {
      alert("Please enter more text for your email.");
   }
   else
   {
      form.submit();
   }
}
