function checkSearch()
{
    var search = document.getElementById('search').value;

    if (search.length > 0)
        return true;
    else
        return false;
}

function mouseEvent(obj){
	if(obj.className=="menu_off"){
		var menu=document.getElementById("menu");
		for(var i=0; i<menu.children.length;i++){
			var spanObj=menu.children[i];
			var viewObjName=spanObj.getAttribute("menu");
			var viewObj=document.getElementById(viewObjName);
			if(spanObj==obj) {
				spanObj.className="menu_on";
				viewObj.style.display="";
			}else{
				spanObj.className="menu_off";
				viewObj.style.display="none";
			}
		}
	}	
}