var mode = 0;
function resize() {
        ns4 = (document.layers)? true:false
        ie4 = (document.all)? true:false

        winW = (ns4)? window.innerWidth-16 : 
document.body.offsetWidth-20
        winH = (ns4)? window.innerHeight : document.body.offsetHeight

        var em = document.getElementById("addurlhover");
        em.style.width = winW/2;
        em.style.left = winW/2 + "px";
}

window.onresize = resize;


function messageHover() {
var message = document.getElementById("addurlhover");
if (message) {
        message.className = "messageshow";
	if (mode)
		resize();
		}
}

function hidemessageHover() {
var message = document.getElementById("addurlhover");
if (message)
        message.className = "messagehide";
}