function MediaWin(fname)             {             
 window.open(fname,'tv','toolbar=no,menubar=no,directories=no,status=no,width=525,height=500,scrollbars=no');            
 }         
function helppop(fname)             {             
 window.open(fname,'','toolbar=no,menubar=no,directories=no,status=no,width=420,height=400,scrollbars=yes');            
 }         

function allvalid()
  {
    if (document.form1.username.value=="")
    {
      document.form1.username.focus();
      window.alert("ÇëÌîдÓû§Ãû£¡");
      return false;
    }
    if (document.form1.passwd.value=="")
    {
      document.form1.passwd.focus();
      window.alert("ÇëÌîдÃÜÂ룡");
      return false;
    }
    return true;
  }
function Submit()
 {
	var t=Math.random() * 100000000;
 if(document.form1.usertype.selectedIndex == 0)
 {
 document.form1.action="/usercenter/login.php";
 }
 if(document.form1.usertype.selectedIndex == 1)
 {
 document.form1.action="http://siteshare21.gsinfo.net.cn/index.php";
 }
 document.form1.submit;
 } 
function tabit1(id,cid) {
	tab1.className="taboff2";
	tab2.className="taboff2";
		
	id.className="tabon2";

	news1.style.display="none";
	news2.style.display="none";

	cid.style.display="block";
}

function tabit2(id,cid) {
	tab4.className="taboff2";
	tab5.className="taboff2";
	tab6.className="taboff2";
	tab7.className="taboff2";
		
	id.className="tabon2";

	news4.style.display="none";
	news5.style.display="none";
	news6.style.display="none";
	news7.style.display="none";
	cid.style.display="block";
}


function searchit(id,cid) {
	search1.className="searchoff";
	search2.className="searchoff";
	search3.className="searchoff";
	search4.className="searchoff";
	id.className="searchon";
	document.search.searchtype.value = cid;
}