// 2006-12-22 黄小明
///切换层 
/// DivName层名前辍 ,DivNums层总数,blockDiv当前层序号
/// 例 :层 rb1,rb2,rb3
///选择层 1 onmouseover=SelectDiv('rb',3,1);
function SelectDiv(DivName,DivNums,blockDiv)
{
    var i=0;
    var str=null;
     for(i=1;i<=DivNums;i++)
     {
   
    if (i==blockDiv)
          {
             document.getElementById(DivName + i).style.display="block";
             }
             else
              document.getElementById(DivName + i).style.display="none";


     }
}
// onclick="UpdateDiv('tL',2,1,'nav14white','nav14blue','2008/images/hoverbg.jpg','');SelectDiv('l_0',2,1);"
// style='cursor:hand;'
function gid(obj){return document.getElementById?document.getElementById(obj):null;}

function UpdateDiv(DivName,DivNums,IndexDiv,Indexclassstr,ordclass,IndexBg,ordBg)
{
	var i=0;
    var str=null;
     for(i=1;i<=DivNums;i++)
     {
   
    if (i==IndexDiv)
          {
             document.getElementById(DivName + i).background=IndexBg;
	  document.getElementById(DivName + i).className=Indexclassstr;
	  document.getElementById(DivName + i).style.cursor="";
             }
             else
			 {
              document.getElementById(DivName + i).background=ordBg;
	          document.getElementById(DivName + i).className=ordclass;
			  document.getElementById(DivName + i).style.cursor="hand";
			 }


     }
	
	
}