function initPage()
{
	var body_height = parseInt(document.getElementById("page").offsetHeight);
	var main_height = parseInt(document.getElementById("main").offsetHeight);
	var client = parseInt(document.documentElement.clientHeight);

	if (body_height < client) 
	{
		document.getElementById("page").style.height = client + "px";
		document.getElementById("main").style.height = client + "px";
	}
}

if (window.addEventListener) window.addEventListener("load", initPage, false);
else if (window.attachEvent) window.attachEvent("onload", initPage);