function Contacto()
{
	var vent= null;
	var espacleft = (screen.width-400)/2;
	var espactop = (screen.height-300)/2;
	var datos = 'height=300,';
		datos +='width=400,';
		datos +='resizable=yes,';
		datos +='top='+espactop+',';
		datos +='left='+espacleft+',';
	vent = 	window.open ('contacto.html','mens_contacto',datos);	
}
function Contacto2(url)
{
	var vent= null;
	var espacleft = (screen.width-650)/2;
	var espactop = (screen.height-400)/2;
	var datos = 'height=400,';
		datos +='width=650,';
		datos +='resizable=yes,';
		datos +='top='+espactop+',';
		datos +='left='+espacleft+',';
	vent = 	window.open (url,'mens_contacto',datos);	
}
// aņadir a favoritos
/* Modified to support Opera */
function bookmarksite(title,url)
{
if (window.sidebar) // firefox
	window.sidebar.addPanel(title, url, "");
else if(window.opera && window.print)
	{ // opera
	var elem = document.createElement('a');
	elem.setAttribute('href',url);
	elem.setAttribute('title',title);
	elem.setAttribute('rel','sidebar');
	elem.click();
	} 
else if(document.all)// ie
	window.external.AddFavorite(url, title);
}