// JavaScript Document
window.onload = function() {
var sfEls = document.getElementById("mainDrop").getElementsByTagName("LI");
for (var i=0; i<sfEls.length; i++) {
sfEls[i].onmouseover= function() {

this.className+=" dropMenu";
}
sfEls[i].onmouseout=function() {
this.className=this.className.replace(new RegExp(" dropMenu\\b"), "");
}
}
}