function clickButtonV2(e, buttonid) { //e is event object passed from function invocation
	var bt = document.getElementById(buttonid);
	if(bt != null)
	{
		var characterCode; //literal character code will be stored in this variable
		if(e && e.which){ //if which property of event object is supported (NN4)
			e = e
			characterCode = e.which //character code is contained in NN4's (and Firefox's) which property
		}
		else{
			e = event
			characterCode = e.keyCode //character code is contained in IE's keyCode property
		}
		if(characterCode == 13){ //if generated character code is equal to ascii 13 (if enter key)
			bt.click();
			return false;
		}
	}
}