function validateRec(){
if (trim(document.form.rec_url.value," ") == ""){
window.alert('You haven\'t entered a URL.               ');
document.form.rec_url.focus();
return false;
}
checkUrlStr = form.rec_url.value.substring(0,7)
if (checkUrlStr != "http://"){
alert('A URL must begin with http://                ');
document.form.rec_url.focus();
return false;
}
return true;
}