function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function isEmailAddress(theElement)
{
var s = theElement.value;
var filter=/^[A-Za-z][A-Za-z0-9_]*@[A-Za-z0-9_]+\.[A-Za-z0-9_.]+[A-za-z]$/;
if (s.length == 0 ) return true;
if (filter.test(s))
return true;
else
return false;
}

function login()
{
	if (document.forms[0].user.value == '' || document.forms[0].pwd.value == '')
		{
			alert("Debe rellenar los campos USUARIO y PASSWORD.");
			document.forms[0].user.focus();
			return;
		}
	document.forms[0].action = 'index.asp?cmd=login';
	document.forms[0].submit();
}

function ampliaImg(imagen)
{
	window.open('ampImagen.asp?foto='+imagen, '', 'dependent=yes,location=no ,width=520,height=520,menubar=0,resizable=1,scrollbars=yes,status=no,titlebar=no,toolbar=no');	
}