function ShareTwitter(url)
{
		titulo=document.title;
		window.open("http://www.twitter.com/intent/tweet?text="+titulo.replace(/ /g,"+",document.title)+"&url="+url,"Twitter","toolbar=0, status=0, width=550, height=420");
}
function ShareFacebook(url)
{
		window.open("http://www.facebook.com/sharer.php?u="+encodeURIComponent((url=="")?window.location.href:url),"Facebook","toolbar=0, status=0, width=550, height=420");
}
function imprimir()
{
		window.print()	;
}