function KeyDownHandler(btn, e)
    {
        // process only the Enter key

	if (window.event) {
	        if (event.keyCode == 13)
        	{
	       	    event.returnValue=false;
	            event.cancel = true;
                    btn.click();
		}
	} else {
	        if (e.which == 13)
        	{
                    btn.click();
		}

        }
    }