/**********************************
 * Común  www.frogtal.com
 * Creada: 13-12-2006
 * Editada: 11-03-2007
 **********************************/
function muestra(id,como){
	var modo='block';
	if(como=='t')
		if(navigator.userAgent.indexOf("MSIE")==-1)
			modo='table';
	var obj=document.getElementById(id);
	if (obj.style.display==modo)
		obj.style.display="none"
	else
		obj.style.display=modo;
}
function muestraAviso(evt,id){
	var obj=document.getElementById(id);
	var x,y,dx,dy,ox,oy;
	if (navigator.userAgent.indexOf("MSIE")>0){
		var root= document.documentElement || document.body;
		ox=obj.offsetHeight;
		dx=root.scrollLeft;
		x=window.event.x+dx-ox;
		oy=obj.offsetWidth;
		dy=root.scrollTop;
		y=window.event.y+dy-oy;
	} else {
		x=evt.pageX;
		y=evt.pageY;
	}
	obj.style.display="block"
	obj.style.top=y-150+'px';
	obj.style.left=x+'px';
}
function ocultaAviso(id){
	var obj=document.getElementById(id);
	obj.style.display="none"
}
function novalido(c,ex,t,er){
	if (!ex.test(t)){
		alert(er);
		c.select();
		c.focus();
		return true;
	}
	return false;
}
function setCookie(name,value,expires,tipo) {
	var mult;
	switch (tipo){
		case 'm':
			mult=60;
			break;
		case 'h':
			mult=60*60;
			break;
		case 'd':
			mult=60*60*24;
			break;
		case 'M':
			mult=60*60*24*30;
			break;
		case 'a':
			mult=60*60*24*365;
			break;
	}
	var exp = new Date();
	exp.setTime(exp.getTime() + (1000 * mult*expires));
	document.cookie = name + "=" + escape(value) + "; path=/" + ((expires == null) ? "" : "; expires=" + exp.toGMTString());
}
function getCookie(name) {
	var dc = document.cookie;
	var cname = name + "=";
	if (dc.length > 0) {
		begin = dc.indexOf(cname);
		if (begin != -1) {
			begin += cname.length;
			end = dc.indexOf(";", begin);
			if (end == -1) end = dc.length;
			return unescape(dc.substring(begin, end));
		}
	}
	return null;
}
function mail(){
	var a,b,c;
	b='\x40';
	a='\x66\x72\x6f\x67\x74\x61\x6c\x2e\x63\x6f\x6d';
	c='\x74\x61\x63';
	d='\x63\x6f\x6e';
	e='\x74\x6f';
	document.location='mailto:'+d+c+e+b+a;
	return true;
}
function volver(lugar){
	if (lugar)
		window.location.href=lugar
	else
		history.back();
}
function noPermitido(){
	alert("S\xf3lo para usuari@s registrd@s.\nLo siento.");
}
function addFav(id_u,id_e,borrar){
	var url="addfavorito.php?user="+id_u+"&link="+id_e+"&borrar="+borrar
	if (borrar==1)
		if (!confirm("\xbfBorrar favorito?"))
			return;
	window.open(url , "favorito" , "top=100,left=100,width=10,height=10,scrollbars=NO,resizable=NO");
}