学步园

  //接收键盘事件
 //处理回车事件，往下移
function doKeyDown() {
 if (window.event.keyCode == 13) {
  if(window.event.srcElement.tagName == "INPUT" || window.event.srcElement.tagName == "SELECT" || window.event.srcElement.tagName == "BUTTON")
   window.event.keyCode = 9;
 }
}