document.onkeydown = KeyEvent;
self.focus();
var type=false;
function KeyEvent(evt){
	if(document.all){
    pressKey=event.keyCode;
	}else{
		pressKey=evt.keyCode;
	}
	if(pressKey==13 && type==false){return false}
}

function cus(){
	type=true;
}
function fBlur(){
	type=false;
}