function preload(imgObj,imgSrc) {
	eval(imgObj+" = new Image()");
	eval(imgObj+".src = '"+imgSrc+"'");
}

function changeImg(imgObj,imgSrc) {
	if (navigator.appVersion >= "3") {
		var imatge = eval(imgSrc+".src");
		document.images[imgObj].src = imatge;
	}
}

function saveCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	} else {
		expires = "";
	}
	document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
	var nameEQ = name+"=";
	var ca = document.cookie.split(';');
	for(var i=0;i<ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function deleteCookie(name) {
	saveCookie(name,"",-1);
}


function contactar() {
	window.location = "mailto: GBG <"+mailto+">"
}

function mostrarSubNav(id) {
	eval("subnav"+id+".slideTo(null,"+pos_y[id]+",25,50)");
}

function obrirPopUp(url,nom,ww,hh,xx,yy,toolbarx,directoriesx,statusbarx,scrollbarsx,menubarx) {
	eval(nom+"=window.open('"+url+"','"+nom+"','toolbar="+toolbarx+",directories="+directoriesx+",status="+statusbarx+",scrollbars="+scrollbarsx+",menubar="+menubarx+",width="+ww+",height="+hh+",left="+xx+",top="+yy+",x="+xx+",posy="+yy+"')");
}

function mostrarImatge(id,num) {
	visor.write("<img src=\"promocions/"+id+"_"+num+".jpg\" width=\"350\" alt=\"\" />");
	marcador.write(literal_imatge+" "+num+"/"+nombre_imatges);
}