function MM_findObj(n, d) { //v4.01
    var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
	d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
    if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
    for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
    if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_validateForm() {
    var i,p,q,nm,test,num,min,max,errors='',args=MM_validateForm.arguments;
    for (i=0; i<(args.length-2); i+=3) { 
	test=args[i+2]; 
	val=MM_findObj(args[i]);
	if (val) { 
	    nm=val.name; 
	    if ((val=val.value)!="") {
		if (test.indexOf('isEmail')!=-1) { 
		    p=val.indexOf('@');
		    if (p<1 || p==(val.length-1)) errors+='- '+nm+' debe contener una direccion de correo electronico valida.\n';
		} else if (test!='R') { 
		    num = parseFloat(val);
		    if (isNaN(val)) errors+='- '+nm+' debe ser numerico.\n';
		    if (test.indexOf('inRange') != -1) { 
			p=test.indexOf(':');
			min=test.substring(8,p); 
			max=test.substring(p+1);
			if (num<min || max<num) errors+='- '+nm+' must contain a number between '+min+' and '+max+'.\n';
		    } 
		} 
	    } else if (test.charAt(0) == 'R') errors += '- '+nm+' es un campo obligatorio.\n'; 
	}
    } 
    var mail1=MM_findObj('Correo'),mail2=MM_findObj('Correo2');
    mail1=mail1.value;mail2=mail2.value;
    if (mail1!=mail2) errors+='- No coinciden las cuentas de correo electronico.\n';

    if (errors) alert('Falta lo siguiente:\n'+errors);
    document.MM_returnValue = (errors == '');
}