function gotopage(pagenum)
	{
		var surl,ssearch,turl,last,page;
		surl = self.location.href;
		ssearch = self.location.search.substring(1);
		if (ssearch.indexOf("page") != -1)
		{
		  last = surl.lastIndexOf("=");
		  turl = surl.substring(0,last+1) + pagenum;
		  }
		else if (surl.indexOf("?") != -1)
		{
		  turl = surl + "&page=" + pagenum;
		  }
		else 
		{
		  turl = surl + "?page=" + pagenum;
		  }
		self.location = turl;
	}
	function select_all(thecheckbox)
	{
		var nn=document.all.item("option")
		if (thecheckbox.checked==true)
			for (j=0; j<nn.length; j++)
				document.all.item("option",j).checked=true;
		else
			for (j=0; j<nn.length; j++)
				document.all.item("option",j).checked=false;
	}
	
function del_selected(del_page)
{
  var s = false; //用来记录是否存在被选中的复选框
  var Newsid, n=0; 
  var strid, strurl;
  var nn = self.document.all.item("option"); //返回复选框Cate的数量
  for (j=0; j<nn.length; j++) 
  {
    if (self.document.all.item("option",j).checked) 
	{
      n = n + 1;
      s = true;
      logid = self.document.all.item("option",j).value;  //转换为字符串
      //生成要删除新闻编号的列表
	  
      if(n==1) 
	  {
        strid = logid;
      }
      else 
	  {
        strid = strid + "," + logid;
      }
    }
  }
  if(!s) 
  {
    alert("请选择要删除的记录项目!");
    return false;
  }	
  if (confirm("确定要删除删除的项目吗？")) 
  {
	window.open(del_page+"&id="+ strid,"","alwaysRaised=yes,resizable=auto,minimizebutton=yes,width=200,height=120");
  }
}
	
	//=============================================================
	// 函 数 名：confirmdel
	// 功能描述：弹出对话框确定是否要删除文件
	// 输入参数：delfile，删除时跳转的页名
	// 返 回 值：无
	// 创建日期：2005-9-16
	// 修改日期：2005-9-16
	// 作    者：李瑞斌
	// 附加说明：
	//==============================================================

function confirmdel(delfile){
       if (confirm("真的要删除这条记录?")) 
      	   open(delfile,"","alwaysRaised=yes,resizable=auto,minimizebutton=yes,width=200,height=120");
}

function log_isok(theform)
{
if (theform.username.value=="")
  {
    alert("Please input your E-mail address.");
    theform.username.focus();
    return (false);
  }
if (theform.pass1.value=="")
  {
    alert("Please input your password.");
    theform.pass1.focus();
    return (false);
  }
if (theform.pass1.value!="")
  {
  theform.pass.value=MD5(theform.pass1.value);
  }


return (true);
}

function b()
  {
	  document.Verify.src="/buyer/reg_login/imgchk/validatecode.htm?rnd="+Math.random();
  }