var count;
var thisPageNum = 0;
var lastPageNum = 0;
var nextPageNum = 1;
function hiddAll(){
   for(var i =0;i<count-1;i++){
       var showId = 'text'+i;
	   document.getElementById(showId).style.display = 'none';
	   }
}
function show(id){
   hiddAll();
   document.getElementById(id).style.display = '';
   thisPageNum = parseInt(id.substring(4,id.length));
   lastPageNum = thisPageNum-1;
   nextPageNum = thisPageNum+1;
   var htmlString = "";
   var pagerArea = document.getElementById("pagerArea");
   if(pagerArea!=null){
     if(count<=6){
      if(thisPageNum>0){
        htmlString = "<a href='#' onclick=show('text"+lastPageNum+"')>上一页</a>";
        for(var pcount = 0;pcount<count-1;pcount++){
          var pcount1 = pcount+1;
          if(pcount==thisPageNum){
            htmlString =  htmlString + "&nbsp;<a href='#' onclick=show('text"+pcount+"')><font color='red'>"+pcount1+"</font></a>&nbsp;";
          }
          else{
            htmlString = htmlString + "&nbsp;<a href='#' onclick=show('text"+pcount+"')>"+pcount1+"</a>&nbsp;"
          }
        }
        if(nextPageNum<count-1){
          htmlString = htmlString + "<a href='#' onclick=show('text"+nextPageNum+"')>下一页</a>"
        }
      }
      else if(thisPageNum==0){
        for(var pcount2 = 0;pcount2<count-1;pcount2++){
          var pcount3 = pcount2+1;
          htmlString = htmlString + "&nbsp;<a href='#' onclick=show('text"+pcount2+"')>"+pcount3+"</a>&nbsp;"
        }
        if(nextPageNum<count-1){
          htmlString = htmlString + "<a href='#' onclick=show('text"+nextPageNum+"')>下一页</a>"
        }
      }
     }
     else if(count>6){
       if(thisPageNum>0){
         htmlString = "<a href='#' onclick=show('text"+lastPageNum+"')>上一页</a>";
         var minPage = 0;
         var maxPage = 0;
         if(thisPageNum-1<=0){
           minPage = thisPageNum-1;
         }
         else{
           minPage = thisPageNum-2;
         }
         if(thisPageNum+1>=count-1){
           maxPage = thisPageNum+1;
         }
         else if (thisPageNum+2>=count-1){
           maxPage = thisPageNum+2;
         }
         else{
           maxPage = thisPageNum+3;
         }
         for(var z=minPage;z<maxPage;z++){
           var z1 = z+1;
           if(z==thisPageNum){
             htmlString =  htmlString + "&nbsp;<a href='#' onclick=show('text"+z+"')><font color='red'>"+z1+"</font></a>&nbsp;";
           }
           else{
             htmlString =  htmlString + "&nbsp;<a href='#' onclick=show('text"+z+"')>"+z1+"</a>&nbsp;";
           }
         }
       }
       else if(thisPageNum==0){
         for(var z2=0;z2<5;z2++){
           var z3 = z2+1;
           htmlString =  htmlString + "&nbsp;<a href='#' onclick=show('text"+z2+"')>"+z3+"</a>&nbsp;";
         }
       }
       if(nextPageNum<count-1){
         htmlString = htmlString + "<a href='#' onclick=show('text"+nextPageNum+"')>下一页</a>"
       }
     }
   }
   pagerArea.innerHTML = htmlString;
}

function pages(){
   repaging();
   if(count<3){
	   nopaging();
   }else{
   document.write("<span id='pagerArea' align='center'>");
   /*if(count<8){
   var count1 = count-2;
   for(var y=0;y<=count-2;y++){
   var p = y+1;
   document.write("&nbsp;<a href='#' onclick=show('text"+y+"')>"+p+"</a>&nbsp;");
   }
   document.write("<a href='#' onclick=show('text"+nextPageNum+"')>下一页</a>");
   }else{
   for(var m=0;m<5;m++){
   document.write("&nbsp;<a href='#' onclick=show('text"+m+"')>"+m+"</a>&nbsp;");
   }
   document.write("<a href='#' onclick=show('text"+nextPageNum+"')>下一页</a>");
   }*/
   document.write("</span>");
   }
   show('text0');
}

function repaging(){
   	var str = document.getElementById("mytbody").innerHTML;
	str = str.substring(str.indexOf('<HR>')+4,str.lastIndexOf('<HR>'));
	str = str.split('<HR>');
   var tag= document.getElementById("mytbody").getElementsByTagName("HR");
   count = tag.length;
   for(var i=0;i<count-1;i++){
       this[i]=str[i];
   }

   document.getElementById("pageText").innerHTML="";
   for(var j=0;j<count-1;j++){
       tr = document.createElement('tr');
	   td = document.createElement('td');
	   td.innerHTML = this[j];
	   tr.id='text'+j;
	   tr.style.display = 'none';
	   tr.appendChild(td);
	   document.getElementById("mytbody").appendChild(tr);
   }
}

function nopaging(){
	var str = document.body.innerHTML;
	str = str.substring(str.indexOf('<HR>')+4,str.lastIndexOf('<HR>'));

   document.getElementById("pageText").innerHTML="";
   var tr = document.createElement('tr');
   var td = document.createElement('td');
   td.innerHTML = str;
   tr.id='text0';
   tr.style.display = 'none';
   tr.appendChild(td);
   document.getElementById("mytbody").appendChild(tr);
}