var myObj={
	menuItems:null,
	init:function(){
		myObj.menuItems = document.getElementsByClassName("nav");
		for(var i=0;i<myObj.menuItems.length;i++){
			if(myObj.menuItems[i].className != "nav nav_selected"){
				Core.addEventListener(myObj.menuItems[i],"mouseover",myObj.mouseover);
				Core.addEventListener(myObj.menuItems[i],"mouseout",myObj.mouseout);
				Core.addEventListener(myObj.menuItems[i],"mousedown",myObj.mousedown);
			}else{
				Core.addEventListener(myObj.menuItems[i],"mouseover",myObj.mouseover);
				Core.addEventListener(myObj.menuItems[i],"mouseout",myObj.mouseoutSelected);
				Core.addEventListener(myObj.menuItems[i],"mousedown",myObj.mousedown);
			}
		}
	},
	mouseover:function(event){
		if(!this.setAttribute("class","nav_mouseover")){
			this.className="nav_mouseover";
		}
	},
	mouseout:function(event){
		if(!this.setAttribute("class","nav")){
			this.className="nav"
		}
	},
	mouseoutSelected:function(event){
		if(!this.setAttribute("class","nav_selected")){
			this.className="nav_selected"
		}
	},
	mousedown:function(event){
		if(!this.setAttribute("class","nav_mousedown")){
			this.className="nav_mousedown"
		}
	}
}
window.onload = myObj.init;