function confirmDelete(checkbox, what) {
	return checkbox.checked ? confirm('Are you sure you want to delete this ' + what + '?') : true;
}


// valida emails...
// en el form  onsubmit="return checkbae('email');

var testresults
function checkemail(campo){
var str=document.getElementById(campo).value
var filter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i
if (filter.test(str))
testresults=true
else{
alert("Please input a valid email address!")
testresults=false
}
return (testresults)
}

function checkbae(campo){
if (document.layers||document.getElementById||document.all)
return checkemail(campo)
else
return true
}