var divnode=document.getElementById("GroupPhoto");
var anode=divnode.getElementsByTagName("a");
var indexa = anode[0].href.lastIndexOf("/");
var indexa1=anode[0].href.lastIndexOf("&");
var ahrefa=anode[0].href.substring(indexa+1,indexa1);
if(ahrefa=="ShowCaseDetail.aspx?ShowCaseId=First")
{
    anode[0].firstChild.nodeValue="没有上一组";
    anode[0].removeAttribute("href");
    anode[0].style.cursor="default";
}
var indexb = anode[1].href.lastIndexOf("/");
var indexb1 = anode[1].href.lastIndexOf("&");
var ahrefb=anode[1].href.substring(indexb+1,indexb1);
if(ahrefb=="ShowCaseDetail.aspx?ShowCaseId=Laste")
{
    anode[1].firstChild.nodeValue="没有下一组";
    anode[1].removeAttribute("href");
    anode[1].style.cursor="default";
}