function split(val) {
    return val.split(/,\s*/);
}
function extractLast(term) {
    return split(term).pop();
}


function FieldClicked(field, password) {
    field.value = "";
    if (password)
        field.type = "password";
}

function FieldBlur(field, defaulttext) {

    if (field.value.length > 0)
        return;
    field.type = "text";
    field.value = defaulttext;
}

function FaceBookShare(encodedurl) {
var url = "http://www.facebook.com/share.php?u=" + encodedurl;
var fbwin = window.open(url, "fbwin");
fbwin.focus();
}