function matchHeight(){
		//var divs,contDivs,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(/\bhtcontainer\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;
				// calculate maximum height
				maxHeight=Math.max(maxHeight,divHeight);
			}
		}
		// assign maximum height value to all of container <div> elements
		for(var i=0;i<contDivs.length;i++){
			if(contDivs[i].className == "htcontainer"){
				if(document.all)
				contDivs[i].style.height = maxHeight + 5;
				else
				contDivs[i].style.height = maxHeight + 3;
			}else
				contDivs[i].style.height = maxHeight;
		}
}

matchHeight();