document.onkeydown = checkEnter
var focused = false;
function checkEnter(e) {
	if(!focused) {
		var keycode;
		if (window.event) 
			keycode = window.event.keyCode;
		else 
			if (e) 
				keycode = e.which;
		if(keycode == 13) {
			modulename = document.getElementsByName('modulename');
			classname = document.getElementsByName('classname');
			setButtonValue(modulename[0].value,classname[0].value);
			document.forms[0].submit();
		}
	}	
}