//** Dynamic Drive Equal Columns Height script v1.01 (Nov 2nd, 06)
//** http://www.dynamicdrive.com/style/blog/entry/css-equal-columns-height-script/
/*if (navigator.appVersion.indexOf("MSIE 6.0")!=-1) {
	document.execCommand("BackgroundImageCache",false,true);
}*/
var ddequalcolumns=new Object()
//Input IDs (id attr) of columns to equalize. Script will check if each corresponding column actually exists:
ddequalcolumns.columnswatch=["left", "center", "right"]


ddequalcolumns.setHeights=function(reset){
	var tallest=0
	var resetit=(typeof reset=="string")? true : false
	
	for (var i=0; i<this.columnswatch.length; i++){
		if (document.getElementById(this.columnswatch[i])!=null){
			if (resetit)
				document.getElementById(this.columnswatch[i]).style.height="auto"
			if (document.getElementById(this.columnswatch[i]).offsetHeight>tallest)
				tallest=document.getElementById(this.columnswatch[i]).offsetHeight
		}
	}

	if (tallest>0){
		for (var i=0; i<this.columnswatch.length; i++){
			if (document.getElementById(this.columnswatch[i])!=null)
				document.getElementById(this.columnswatch[i]).style.height=tallest+"px"
		}
	}
}



ddequalcolumns.resetHeights=function(){
	this.setHeights("reset")
}



ddequalcolumns.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)
}



ddequalcolumns.dotask(window, function(){ddequalcolumns.setHeights()}, "load")
ddequalcolumns.dotask(window, function(){if (typeof ddequalcolumns.timer!="undefined") clearTimeout(ddequalcolumns.timer); ddequalcolumns.timer=setTimeout("ddequalcolumns.resetHeights()", 200)}, "resize")