function loadFrame(src, height)
{
	var myIframe = document.getElementById("iBody");
	myIframe.src = "";
	myIframe.style.height = height + "px";

	var myPage = document.getElementById("pg");
	myPage.style.height = parseInt(height) + 300 + "px";
	myIframe.src = src;
}
var gs_submenu = 'menu1';
function showSubMenu(submenu, src, height)
{
	loadFrame(src, height);
	document.getElementById(gs_submenu).style.display = 'none';
	document.getElementById(submenu).style.display = 'block';
	gs_submenu = submenu;
}