function changeImg(obj,imgSrc) {
	if (typeof(obj) == "undefined") return;
	if (imgSrc == "") return;
	obj.src = imgSrc;
}

var nid=0;
function ShownNav(id){
  var n_nav = document.getElementById("n_nav").getElementsByTagName("a");
  if(id!=nid){
    n_nav[nid].className='';
    n_nav[id].className='here';
    nid=id;
  }
}
var tid=0;
function ShowWorkNav(id){
  var work_nav = document.getElementById("work_nav").getElementsByTagName("a");
  if(id!=tid){
    work_nav[tid].className='';
    work_nav[id].className='here';
    tid=id;
  }
}
function createPageList()
{
    var PageList = '';
    var limit = 0;
    for ( i = 1; i <= 10; i++ )
    {
        if ( PageIndex == i )   PageList = PageList + "<span class=\"current\">" + i + "</span>";
        else    
        {
            limit = (i - 1) * 12;
            PageList = PageList + "<a href='#' onclick=\"PageIndex=" 
            + i + ";createPageList();get('digg_content','list.php?typeid=19&listid=1&tpl=index&tpltypeid=19&orderby=pubdate&limit="
            + limit+"-12&listtype=common-unknown','<table width=200px align=center><tr><td width=40px><img src=http://res.sa20.com/tpl/frame/ajax-loader.gif></td><td valign=middle>正在获取内容...</td></tr></table>');\">" + i + "</a>";
        }
    }
    document.getElementById('pagelist').innerHTML = PageList;
    document.getElementById('pagelist').style.display = '';
}