Autocomplete input field with the value of another input field

Question

I'm going crazy about this. I found a simple JavaScript solution for my problem:

<script type="text/javascript" language="JavaScript" src=""> s1 = new String(catwebformform43575.EmailAddress.value) function changeVal() { document.catwebformform43575.Username.value = catwebformform43575.EmailAddress.value; } </script> <BR> <BR> <form name="catwebformform43575"> <input type="text"id="EmailAddress" name="EmailAddress" value="" onkeyup = "changeVal()"> <input type="text" id="Username" name="Username" value=""> 

but i need jQuery solution ... Can anyone help?

Answer 1

 $("#EmailAddress").keyup(function(){ $("#Username").val(this.value); }); 

See working demo