Hi,

This is for small trick that how button click  when we press enter in text field.
Small but very use fully.

<apex:inputText  value="{!text}"  id="textId"  onkeypress="if (event.keyCode == 13) { ClickOn(); }"/>
<apex:CommandButton Id="BTN" styleClass="BTN" action="{!a}" />

<script>
 function ClickOn(){
  $('.BTN').click();
}
</script>


Thanks
Ashlekh Gera.