var menu=String(this.location).charAt(String(this.location).lastIndexOf("?")+6);

window.onload=function() {
 document.getElementById("menu1").style.display="none";
 document.getElementById("menu2").style.display="none";
 document.getElementById("menu3").style.display="none";
 document.getElementById("menu4").style.display="none";
 document.getElementById("menu5").style.display="none";
 OpenMenu('menu'+menu);
 document.getElementById("submenu1").style.display="none";
 document.getElementById("submenu2").style.display="none";
 document.getElementById("submenu3").style.display="none";
}

function OpenMenu(Id) {
 var IE=(window.navigator.userAgent.indexOf('MSIE')>-1)?1:0;
 var menu=document.getElementById(Id);
 var display=menu.style.display;
 menu.style.display=(display=="table" || display=="block")?"none":((IE)?"block":"table");
}

function OpenSubMenu(Id) {
 OpenMenu(Id);
}