Default Data in a Text Field + Submitting

Hey all, I’m encountering a problem I did not think of. I have a single textfield, that once submitted via “Get” method, sends the data to the site (Think of a google search field in a banner).

In any case, I have some default text in the field. But when someone clicks on the submit button, the default text gets submitted as the search string. Is there a way to get the result from submitting the form without entering text into the textfield to be a default URL, and not the text string? See Below:

myfield.text = “Enter Your Text”;
myfield.onSetFocus = function(oldFocus) {
myfield.text = “”;
};
myfield.onKillFocus = function(oldFocus) {
if (myfield.text == “”) {
myfield.text = “Enter Your Text”;
}
};
_root.onEnterFrame = function() {
if (Key.isDown(Key.ENTER)) {
getURL(“theformurlgoeshere”, “_top”, “GET”);
}
};