/* originally from http://www.devarticles.com/c/a/Web-Design-Standards/Matching-div-heights-with-CSS-and-JavaScript/3/ */
heightmatcher=function(div1,div2,div3){
	var maxHeight=0;
	for(var i=0;i<arguments.length;i++){
		d=document.getElementById(arguments[i]);
		if(d.style.height){
			divHeight=d.style.height;
		}
		else if(d.offsetHeight){
			divHeight=d.offsetHeight;
		}
		else if(d.style.pixelHeight){
			divHeight=d.style.pixelHeight;
		}
		maxHeight=Math.max(maxHeight,divHeight);
	}
	for(var i=0;i<arguments.length;i++){
		d=document.getElementById(arguments[i]);		
		d.style.height=maxHeight+'px';
		d.style.height=maxHeight+'px';
		if (d.offsetHeight > maxHeight) {
				d.style.height = (maxHeight - (d.offsetHeight - maxHeight)) + 'px';
		}
	}
}