function MenuNavi(id)
  {
       var obj=$(id);//发生事件对象
	   //alert(id);
	     obj.onmouseover=function()
		 {
		    //alert('sub_'+id.split('_')[1]);
		    var sobj=$('sub_'+id.split('_')[1]);
		    sobj.style.display='block';
		    sobj.style.top=position.OffsetTop(sobj)+"px";
            sobj.style.left=position.OffsetLeft(sobj)+20+"px";
		 }
		 $('sub_'+id.split('_')[1]).onmouseout=function()
		 {
		     $('sub_'+id.split('_')[1]).style.display='none';
		 }
  }
  
  function SwitchBar(fid,cid,su)
  {
	var F=$(fid);//发生鼠标事件的对象
	var C;
	var CF;
	var c1='switch_1';//当鼠标移开的class
	var c2='switch_0';//当鼠标移上的class
	F.onmouseover=function()
	{
	  for(var i=0;i<su;i++)
	  {
		  CF=$(fid.split('_')[0]+'_'+i);
		  CF.className=c1;
	  	  C=$(cid+'_'+i);
	  	  if(C.style.display!='none')
	  	  {C.style.display='none';}
	  }
	  $(cid+'_'+fid.split('_')[1]).style.display='block';	
	  F.className=c2;
	}
}
//打开对话框
function OpenDialog(url,w,h)
{
  window.showModalDialog(url,'op','dialogWidth='+w+'px;dialogHeight='+h+'px');
}
//打开窗口
function OpenWindow(url,w,h)
{
  window.open(url,'w','width=550,height=400,fullscreen=0,directories=0,location=0,menubar=0,resizable=0,scrollbars=0,status=0,titlebar=0,toolbar=0'); 
}