<script language="javascript">
var gup = function( name ) {
var results = (new RegExp("[\\?&]"+name+"=([^&#]*)")).exec(window.location.href);
if ( results == null ) {return ""}
else {return results[1]}
};
window.onload = function() {
document.getElementById("emailaddie").value = gup("EMAIL");
}
</script>
http://stackoverflow.com/questions/4877966/pass-a-simple-url-variable-into-and-input-field-via-javascript
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