function mouseclick()
{
  	if(event.button==2)
		window.alert("对不起,您无权使用鼠标右键!")
}

function mouseOverRow(el)
{
   el.className="content-tr-3"
}

function mouseOutRow(el)
{
   el.className="content-tr-2"
}

function checkmac(mac)
{
   mac=mac.replace(/(^\s*)|(\s*$)/g,"");  
   if (mac.length!=17) return false;
   if (mac=='00-00-00-00-00-00' || mac=='FF-FF-FF-FF-FF-FF' || mac=='44-45-53-54-00-00') return false;
   var pattern=/[0-9A-F]{2}-[0-9A-F]{2}-[0-9A-F]{2}-[0-9A-F]{2}-[0-9A-F]{2}-[0-9A-F]{2}/i
   return pattern.test(mac)
}