function showTab(ID) 
{ 
    for(var i=1;i<=3;i++) 
    { 
        if(ID==i) 
        { 
            $('Tab_'+i).className='on'; 
            $('cont_'+i).style.display=''; 
        } 
        else 
        { 
            $('Tab_'+i).className='off'; 
            $('cont_'+i).style.display='none'; 
        } 
    } 
} 
function showTab_R(ID) 
{ 
    for(var i=4;i<=6;i++) 
    { 
        if(ID==i) 
        { 
            $('Tab_'+i).className='on'; 
            $('cont_'+i).style.display=''; 
        } 
        else 
        { 
            $('Tab_'+i).className='off'; 
            $('cont_'+i).style.display='none'; 
        } 
    } 
} 
function $(ID) 
{ 
    return document.getElementById(ID); 
} 

function gonggao(chatwindow) { var MainWindow = window.open (chatwindow,            
"_blank","toolbar=no,location=no,menubar=no,scrollbars=no,width=400,height=450,resizeable=no,status=no");}

function search()
{
if(document.wx.sc[0].checked)
   window.open("./down_search.asp?k="+wx.k.value,"window");
else if(document.wx.sc[1].checked)
   window.open("./search.asp?k="+wx.k.value,"window");
else if(document.wx.sc[2].checked)
   window.open("./down_search.asp?k="+wx.k.value,"window");
else {
   window.open("http://www.erong.com/cy/?keyword="+wx.k.value,"window");
   }
return false;   
}