var ie4 = (document.all) ? true : false;
var ns4 = (document.layers) ? true : false;
var ns6 = (document.getElementById && !document.all) ? true : false;
///////////////
//busca posicion del mouse///////////////
var IE = document.all?true:false
if (!IE) document.captureEvents(Event.Mousemove)
document.onmousemove = getMouseXY;
var tempX = 0
var tempY = 0

function getMouseXY(e) {

if (IE) {

tempX = event.clientX + document.body.scrollLeft

tempY = event.clientY + document.body.scrollTop

} else {

tempX = e.pageX

tempY = e.pageY

}

return true
}

///////////////////////////////////////////////////////

//funcion borrar

function hidelayer(lay) {
if (ie4) {document.all[lay].style.visibility = "hidden";}
if (ns4) {document.layers[lay].visibility = "hide";}
if (ns6) {document.getElementById([lay]).style.display = "none";}



}

//----------------------------------------------

function showlayer(lay) {
if (ie4) {document.all[lay].style.visibility = "visible";}
if (ns4) {document.layers[lay].visibility = "show";}
if (ns6) {document.getElementById([lay]).style.display = "block";}
}