function showDiv(divname)  {
			var page = document.getElementById(divname);	
			if(page.style.display == "block")  {
				page.style.display = "none";
			} else  {
				page.style.display = "block";
			}
		}
		
function updateheight(element) {
	$(".left_middle").css("height",element.scrollHeight+"px");
	$(".right_middle").css("height",element.scrollHeight+"px");
}