I have an ASPX page with a single text box and one submit button. Sometimes a submit occurs on keypress of the Enter key (which is what I want), and sometimes it doesn't.

I have an ASPX page with a single text box and one submit button. When I enter a zip code into the text box and press the Enter key, the page just reloads. However, if I remove the focus from the text box by clicking somewhere else on the page and then press the Enter key, the submit occurs and the next page loads as I want.

Code Snippet:
<INPUT name="yourZipCode">
<INPUT onclick="validateForm(this.form, '/nextpage.aspx');return false;"   id="buttonid" type="submit" value="NEXT" name="homeFind">

I have tried writing a custom onkeypress event handler to catch the Return keypress and then click the button in the event handler using   document.getElementById("buttonid").click();  
but result is the same.

I am using ,NET Framework 1.1Start Free Trial