Why this code works on firefox but not on chrome ?

my html file on my asp site has this :-
<form> <input type="file" name="myFile1" onchange="this.form.upfile.value=this.value">     <input type="text"  name="upfile"><br/>
</form>
Intention is when the user selects a file, the name of the file he selected should also appear in the textbox.
This works on Firefox. However, nothing appear in textbox on Chrome.
Could anyone advise how should I improve this situation, Thanks