// JavaScript Document
var pics = new Array('nobg.gif','1.gif','2.gif','3.gif', '4.gif', '5.gif' , '6.gif', '7.gif', '8.gif', '9.gif', '10.gif' , '11.gif', '12.gif', '13.gif', '14.gif','15.gif','26.gif','17.gif','18.gif','19.gif','20.gif','21.gif','22.gif','23.gif','24.gif','25.gif','26.gif','27.gif','28.gif','29.jpg','30.jpg','31.jpg','32.jpg','33.jpg','34.jpg','35.jpg','36.jpg','37.jpg','38.jpg','39.jpg','40.jpg','41.jpg','42.jpg','43.jpg','44.jpg','45.jpg','50.jpg','51.jpg','52.jpg','53.jpg','54.jpg');
//alert(pics);
var pageno=1;//当前页;
var maxnum=pics.length;//总记录数
var vps=5;//每页显示多少条
var tp=0;//总页数
tp=(maxnum%vps!=0)?Math.floor(maxnum/vps)+1:maxnum/vps;


function goprepage()
{
 pageno = (pageno==1)?1:(pageno-1);
 var startp=(pageno-1)*vps+1
 var tb='<table width="100%" border="0" cellspacing="0" cellpadding="0"><tr>';
 for(var ii=startp;ii<startp+5;ii++)
 {
   tb+='<td align="center"><img src="/images/'+pics[ii-1]+'" width="80" height="70" /></td>';
 }
  tb+='<td rowspan="2" align="center"><a href="#" onclick="javascript:goprepage();"><u>上页</u></a><br><br><a href="#" onclick="javascript:gonextpage();"><u>下页</u></a></td></tr><tr>';
 
  for(var ii=startp;ii<startp+5;ii++)
  {
	var s=(ii==startp)?' checked':'';
	tb+='<td align="center"><input type="radio" name="pagebg" '+s+' value="'+pics[ii-1]+'" /></td>';
  } 
  tb+='</tr></table>';
 document.getElementById("pictag").innerHTML=tb;
}


function gonextpage()
{
 if(pageno>=tp) pageno=tp;else pageno=pageno+1;
 var startp=(pageno-1)*vps+1
 var tb='<table width="100%" border="0" cellspacing="0" cellpadding="0"><tr>';
 for(var ii=startp;ii<startp+5 && ii<=maxnum;ii++)
   {
   tb=tb+'<td align="center"><img src="/images/'+pics[ii-1]+'" width="80" height="70" /></td>';
   }
  tb=tb+'<td rowspan="2" align="center"><a href="#" onclick="javascript:goprepage();"><u>上页</u></a><br><br><a href="#" onclick="javascript:gonextpage();"><u>下页</u></a></td></tr><tr>';
 
  for(var ii=startp;ii<startp+5 && ii<=maxnum;ii++)
   {
	if(ii==startp) var s=' checked';else var s='';
   tb=tb+'<td align="center"><input type="radio" name="pagebg" '+s+' value="'+pics[ii-1]+'" /></td>';
   } 
    tb=tb+'</tr></table>';
 document.getElementById("pictag").innerHTML=tb;
}


function gopage(t_page)
{
 if(t_page>=tp) t_page=tp;
 if(t_page<=0) t_page=1;
 var startp=(t_page-1)*vps+1
 var tb='<table width="100%" border="0" cellspacing="0" cellpadding="0"><tr>';
 for(var ii=startp;ii<startp+5 && ii<=maxnum;ii++)
   {
   tb=tb+'<td align="center"><img src="/images/'+pics[ii-1]+'" width="80" height="70" /></td>';
   }
  tb=tb+'<td rowspan="2" align="center"><a href="#" onclick="javascript:goprepage();"><u>上页</u></a><br><br><a href="#" onclick="javascript:gonextpage();"><u>下页</u></a></td></tr><tr>';
 
  for(var ii=startp;ii<startp+5 && ii<=maxnum;ii++)
   {
	if(ii==startp) var s=' checked';else var s='';
   tb=tb+'<td align="center"><input type="radio" name="pagebg" '+s+' value="'+pics[ii-1]+'" /></td>';
   } 
    tb=tb+'</tr></table>';
 document.getElementById("pictag").innerHTML=tb;
}