if (top.location != self.location)top.location=self.location;
function killErrors() {
return true;
}

window.onerror = killErrors;


//¶¥²¿×¨ÓÃ
  
  function changebg(myitem,mynum)
  	{
  	if(mynum==2)
  		{
			document.getElementById(myitem).style.backgroundImage='url(images/menu_bg2.gif)';
		}
	else
		{
			document.getElementById(myitem).style.backgroundImage='url(images/menu_bg3.gif)';
		}
	}