function SwitchP(index, ctrlObj) {
    var ctrlName = ctrlObj.toString(); //.id.substring(0, ctrlObj.id.indexOf("MessageIndex"));
    var objhfdIndex = document.getElementById(ctrlName + "$hfdIndex");
    var oldIndex = objhfdIndex.value;
    objhfdIndex.value = index;
    var d_image = document.getElementById(ctrlName + "_d_image");
    var Index = (parseInt(index) - 1)
    //  var image = document.getElementById(ctrlName + "MessagePicPath" + index).innerHTML;
    var picPath = document.getElementById(ctrlName + "_picIndex" + Index);
    var image = "<img border=\"0px\" style=\" width: 220px; height:160px\" src=\"" + picPath.innerHTML + "\"/>"

    d_image.innerHTML = image;

    var table = document.getElementById(ctrlName + "_GridView1");
    var trs = table.getElementsByTagName("tr");
    for (var i = 0; i < trs.length; i++) {
        var tds = trs[i].getElementsByTagName("td");
        var td = tds[1];
        if (td.className == "icon_on")
            td.className = "icon";
    }
    trs[Index].getElementsByTagName("td")[1].className = "icon_on";

}

function SwitchExP(ctrlObj, count) {

    var ctrlName = ctrlObj.toString(); //;.id.substring(0, ctrlObj.id.indexOf("MessageIndex"));
    var objhfdIndex = document.getElementById(ctrlName + "$hfdIndex");
    var Index = objhfdIndex.value;
    if (Index < count) {
        objhfdIndex.value = parseInt(Index) + 1;
    }
    else {
        objhfdIndex.value = 1;
    }
    var objhfdCount = document.getElementById(ctrlName + "$hfdCount");
    objhfdCount.value = count;
    SwitchP(objhfdIndex.value, ctrlObj.toString());
}
function InitExchangeP(ctrlObj, count, Speed)//所属控件标示，总的索引数
{
    //var ctrlObjName=ctrlObj.id;
    var ctrlName = ctrlObj.toString(); //.id.substring(0, ctrlObj.id.indexOf("MessageIndex"));
    var objhfdIndex = document.getElementById(ctrlName + "$hfdIndex");
    var Index = parseInt(objhfdIndex.value) - 1;
    var d_image = document.getElementById(ctrlName + "_d_image");
    var picPath = document.getElementById(ctrlName + "_picIndex" + Index);
    var image = "<img border=\"0px\" style=\" width: 220px; height:160px\" src=\"" + picPath.innerHTML + "\"/>"
    d_image.innerHTML = image;
    var timeID = setInterval('SwitchExP(\'' + ctrlName + '\',' + count + ')', Speed);  //设置循环与间隔

    var table = document.getElementById(ctrlName + "_GridView1");
    var trs = table.getElementsByTagName("tr");
    for (var i = 0; i < trs.length; i++) {
        var tds = trs[i].getElementsByTagName("td");
        var td = tds[1];
        if (td.className == "icon_on")
            td.className = "icon";
    }
    trs[Index].getElementsByTagName("td")[1].className = "icon_on";


}