window.onload = function(){
    var windowHeight = document.documentElement.clientHeight;
    var content = document.getElementById("content");
	var contentHeight = content.offsetHeight;
	var menu = document.getElementById("menu");
    var menuHeight = menu.offsetHeight;
	if(menuHeight<windowHeight){
		if(contentHeight <= windowHeight){
			var newHeight = windowHeight - 54;
			content.style.height = newHeight +"px";
			document.getElementById("menu").style.height = newHeight + 60 +"px";
		}else{
			document.getElementById("menu").style.height = contentHeight+"px";
		}  
	}
}