分页,js分页

<style type="text/css">
body{
 font-size:12px;
}
</style>
<input type="button" value="分页" onclick="initializePageNav(1)">
<div id="pageDir"></div>
<script language="JavaScript">
<!--
function initializePageNav(iCurrPage)
{
 var iPageSize = 20;
 var iProCount = 2121;
 var b = ((iProCount%iPageSize)!=0);
 var iPageCount = parseInt(iProCount/iPageSize)+(b?1:0);
 if (iCurrPage > iPageCount) return false;
 iCurrPage = parseInt(iCurrPage);
 var sTemp = "";
 var sTemp1 = "每页:"+ iPageSize +"/<span style='color:red'>"+ iProCount +"</span>条  页数:<span style='color:blue'>"+ iCurrPage +"</span>/"+ iPageCount +"页";
 var sTemp2 = "<input type=\"text\" id=\"goPageNo\" value=\""+iCurrPage+"\" size=\"3\" /><input type=\"button\" value=\"GO\" onclick=\"initializePageNav($('goPageNo').value);\" /> "
 if (iProCount==0)
 {
  sTemp = "<font color='#cccccc'>首页 上一页 下一页 末页</font>";
 }
 else if (iPageCount==1)
 {
  sTemp = "<font color='#cccccc'>首页 上一页 下一页 末页</font>"
 }
 else if (iPageCount==iCurrPage)
 {
  sTemp = "<a href='Javascript:initializePageNav(1)'>首页</a> <a href='Javascript:initializePageNav("+(iPageCount-1)+")'>上一页</a> <font color='#cccccc'>下一页 末页</font>"
 }
 else if (iCurrPage==1)
 {
  sTemp = "<font color='#cccccc'>首页 上一页 </font><a href='Javascript:initializePageNav("+(iCurrPage+1)+")'>下一页</a> <a href='Javascript:initializePageNav("+iPageCount+")'>末页</a>"
 }
 else
 {
  sTemp = "<a href='Javascript:initializePageNav(1)'>首页</a> <a href='Javascript:initializePageNav("+(iCurrPage-1)+")'>上一页</a> <a href='Javascript:initializePageNav("+(iCurrPage+1)+")'>下一页</a> <a href='Javascript:initializePageNav("+(iPageCount)+")'>末页</a>"
 }
 $("pageDir").innerHTML = sTemp +"  "+ sTemp2 + "  " + sTemp1 ;
 CollectGarbage();
}
function $(o)
{
 return document.getElementById(o);
}
initializePageNav(1)
//-->
</script>