ie4=(document.all)?true:false;
ns4=(document.layers)?true:false;
ns6=(document.getElementById)?true:false;


if(ie4) {mStyle ='menu.css'}
if(ns4) {mStyle ='menu_ns4.css'}
if(ns6) {mStyle ='menu.css'}

/*document.write("<link rel='stylesheet' href='" + "images/" + mStyle+"' type='text/css'>");  */

function show(id) {
	if(ie4) {document.all[id].style.visibility = "visible"}
	if(ns4) {document.layers["layerpadre"].document.layers[id].visibility = "show"}
	if(ns6) {document.getElementById(id).style.visibility = "visible"}
}

function hide(id) {
	if(ie4) {document.all[id].style.visibility = "hidden"}
	else if(ns4) {document.layers["layerpadre"].document.layers[id].visibility = "hide"}
	else if(ns6) {document.getElementById(id).style.visibility = "hidden"}
}

/*
function layStyle(layId) {
    if(ie4)
        return ('document.all.'+layId+'.style');
    if(ns4)
        return ('document.layers["layerpadre"].document.layers["'+layId+'"]');
    if(ns6)
        return ('document.getElementById(\''+layId+'\').style');
}
*/

var menuAct = -1;

function chkMenu(menuid) {
    menuAct=menuid;
    setTimeout("mclose()",700);
}

function mclose() {
    if(menuAct!=-1)
        eval('hide("m'+menuAct+'open")');
}


function showHide(lid) {
	if(lid!=null)
        eval('show(\'m'+lid+'open\')');

    for(i=0; i< 10; ++i)  {
        if(lid!=i)
            eval('hide(\'m'+i+'open\')');
    }

}

/* 
function imgChange(imageID,imageName) {
	var myDocObj=document
	myDocObj.images[imageID].src = eval(imageName + ".src");
}			
*/