var isNav4 = false;
var isIE = false;
var isAdv = false;
var isOpe = false;
if (document.layers) {isNav4 = true}
else if ((document.getElementById)&&(navigator.appName.indexOf("Explorer") < 0)){isAdv = true}
else {isIE = true}
if (navigator.userAgent.indexOf("Opera")!=-1){isOpe = true}

var overdiv=0;
var x;
var y;
function showLayer(a){
desc =  "<table width=250 style=\"padding:5px; border:1px solid #2a4991; background-color:white; text-align:justify; font-size:10px;\"><tr><td>"
        +"<table width=100% style=\"padding:0px; border:0px;\"><tr><td>"
        +a  
		+"</td></tr></table>"
        +"</td></tr></table>";
		
if(isNav4) {
document.popup.visibility='show';
document.popup.document.write(desc);
document.popup.document.close();
document.popup.left=x+30;
document.popup.top=y-50;
        }
else if(isIE){
document.all.popup.style.visibility='visible';
document.all.popup.innerHTML=desc;
document.all.popup.style.pixelLeft=x+30;
document.all.popup.style.pixelTop=y-50;
        }
else if(isAdv){
var X=x+30;
var Y=y-50;
document.getElementById("popup").style.visibility='visible';
document.getElementById("popup").innerHTML=desc;
document.getElementById("popup").style.left=X+"px";
document.getElementById("popup").style.top=Y+"px";
        }
}

function hideLayer(){
if (overdiv == "0") {
        if(isNav4) {document.popup.visibility='hide';;}
        else if(isIE){document.all.popup.style.visibility='hidden';}
        else if(isAdv) {document.getElementById("popup").style.visibility='hidden';}
        }
}

var isNav = (navigator.appName.indexOf("Netscape") !=-1);
function handlerMM(e){
x = (isNav) ? e.pageX : event.clientX + document.body.scrollLeft;
y = (isNav) ? e.pageY : event.clientY + document.body.scrollTop;
}
if (isNav){document.captureEvents(Event.MOUSEMOVE);}
document.onmousemove = handlerMM;