addIEHover

function addIEHover(arg) {
	// check to see if browser supports mouseenter event if not return
	if(typeof document.body.onmouseenter != "object") return; 
	// if passed argument not an array convert it to one
	if(!arg.length) {
	 	var elems = [];
		elems[0] = arg;
	}
    else {
		var elems = arg;
	}
	// iterate through array and attach mouseenter event to obejcts passed
	// add and remove class="hover" on mousenter/mouseout event
	for (var i = 0; i < elems.length; i++) {
		elems[i].onmouseenter = function() {
			this.className += " hover";
		}
		elems[i].onmouseleave = function() {
			this.className = this.className.replace(/\s*hover/, "");
		}
	}
}
 
// call function in one of the following Manners
addIEHover([document.getElementById("one"), document.getElementById("two")]);
addIEHover(document.getElementsByTagName("div"));
addIEHover(document.getElementsByTagName("*")); //attach hover class to all element nodes
 
//CSS
/*
nav:hover, nav.hover {
   styles to apply on hover
}
 
*/