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;
	//alert("keycode: " + keycode);
	if(keycode == 13)
	{
		modulename = document.getElementsByName('modulename');
		classname = document.getElementsByName('classname');
		//setButtonValue("'" + modulename[0].value + "'","'" + classname[0].value +"'");
		setButtonValue(modulename[0].value,classname[0].value);
		document.forms[0].submit();
	}
	}	
}