/*----- key press event handler, which handle enter event to perform action script ----- */
function keyPressHandler(e,elemID, action) {
	var keynum;	//key ASCII value
	if(window.event) // IE
	{
		keynum = e.keyCode;
	}
	else if(e.which) // Netscape//Firefox/Opera
	{
		keynum = e.which;
	}
	if(keynum==13) {
		//----- perform action script -----
		if(action == "click") {
			document.getElementById(elemID).click();
		}
		else if(action == "focus") {
			document.getElementById(elemID).focus();
		}
		else {
			eval(action);
		}
		return false;	//----- return false (to mark event as handled) -----
	}
	//----- pass on the event if not enter key -----
	return true;
}