function matchHeight(){
	setHeight('container');
	
}
function setHeight(arg){
	var divs,contDivs,subContDivsLeft,subContDivsRight,maxHeight,subMaxHeight,divHeight,d;
	
	// get all <div> elements in the document
	divs=document.getElementsByTagName('div');
	contDivs=[];
	
	// initialize maximum height value
	maxHeight=0;
	
	// iterate over all <div> elements in the document
	for(var i=0;i<divs.length;i++)
	{
		// make collection with <div> elements with class attribute 'container'
		//if(/\bcontainer\b/.test(divs[i].className))
		if(eval("/\\b"+arg+"\\b/.test(divs[i].className)"))
		{
			d=divs[i];
			contDivs[contDivs.length]=d;
			
			// determine height for <div> element
			if(d.offsetHeight)
			{
				divHeight=d.offsetHeight;
			}
			else if(d.style.pixelHeight)
			{
				divHeight=d.style.pixelHeight; 
			}
			
			maxHeight=Math.max(maxHeight,divHeight);
		}
	}
	// assign maximum height value to all of container <div> elements
	for(var i=0;i<contDivs.length;i++){			
		contDivs[i].style.height= maxHeight + "px";
	}
}