function addEventSimple(obj,evt,fn) {
	if (obj.addEventListener) { obj.addEventListener(evt,fn,false); }
	else if (obj.attachEvent) {	obj.attachEvent('on'+evt,fn); }
}

function initall() {

	if (document.getElementById("take_me_to_hook")) {
		var take_me_to_hook = document.getElementById("take_me_to_hook");
		var header_dd_menu = document.getElementById("header_dd_menu");
		var blahs = document.getElementById("blahs");

		take_me_to_hook.onclick = function() {
			if (header_dd_menu.style.display.length == 0) {
				header_dd_menu.style.display = "block";	
			}else {
				header_dd_menu.style.display = "";
			}			
		}
	}

} 
addEventSimple(document,'mousemove',initall);