实现getList分页

 <table  border="0" cellpadding="0" cellspacing="0" width="100%" style="background-color:#D2EBF3;" height="32">
                  <tr><td align="right" bgColor="#f7f7f7" height="36">
                <a href="javascript:void(0)" onclick="getPage(-1)" style="visibility :visible " id="up">上一页</a>
               <a href="javascript:void(0)" onclick="getPage(1)"  style="visibility :visible " id="next">下一页</a>
                <a href="javascript:void(0)" onclick="getPage(0)"  style="visibility :visible ">首页</a>
                <a href="javascript:void(0)" onclick="getPage(11)">尾 页</a>
                <form name="form1" id="form2">
                <select name='PageCtl1_select' id="select" onchange='SD_Web_PageCtlGoOtherPage(this.value);' style="width: 30px"></select>&nbsp;//按下拉显示页数
                </form> 
                 </td> </tr>
                   </table>

//参数说明：lblPostsCount：总共记录条数，由getActivityCount获得；iPageIndex：全局变量，当前页数

function getPage(page)
{
if(page==0)//回到首页
{
iPageIndex=1;
document.form1.PageCtl1_select.options[iPageIndex-1].selected="true";   //下拉框显示第几页，数组从0开始
getActivityList(1);
}
else if(page==11)//回到尾页
{

iPageIndex=Math.round (lblPostsCount/6);
document.form1.PageCtl1_select.options[iPageIndex-1].selected="true"; 
getActivityList(iPageIndex);
}
else      //上一页，下一页
{ 
iPageIndex=iPageIndex+page;
if(iPageIndex<=0)  //如果是第一页还点上一页，还是保持在第一页
iPageIndex=1;
else if(iPageIndex>Math.round (lblPostsCount/6))//如果是最后一页还点下一页，保持在最后一页
iPageIndex=Math.round (lblPostsCount/6);
else
{
document.form1.PageCtl1_select.options[iPageIndex-1].selected="true"; 
getActivityList(iPageIndex);//调用List清单
}
}
}

function getActivityCount()  //获取记录条数
{
 var variable=['strWhere']; 
 var value=new Array(1);
 value[0]="iStatus=2 and iPublic=5";
 newRequest("getActivityCount",variable,value,getAllActivityCountShow);
  beginRequest(); 
}
function getAllActivityCountShow()
{
    var xmlhttp=xmlHttpRequest;                                                              
 　 var str=xmlhttp.responseText;    
　　　var value=GetValue(str,"getActivityCountResult"); 
　　　lblPostsCount=value;          //记录总数 
　    document.form1.PageCtl1_select.length=0;  //初始下拉框，把页数付给下拉框的value值和text显示；
                        for(i=1;i<=Math.round (lblPostsCount/6);i++)
                        {
                        var option=document.createElement("option");
                        option.value=i; 
                        option.text=i;
                         document.form1.PageCtl1_select.options.add(option);            
                                }
}

function SD_Web_PageCtlGoOtherPage(pageNo)
{   
getActivityList(pageNo);
}