page.txt

最近项目要求实现新闻内容页无刷新分页

<script type="text/javascript"> 

function imgfm()              
{          
var pic=document.getElementById("hicontent").getElementsByTagName('img');
for(i=0;i<pic.length;i++)
  {   
     if(pic[i].width>540) 
      {pic[i].width=540;}         
   }
}
    
  var count;
  count=2800;
  //匹配中文和全角符号的正则
  var regExp=/^[\u4e00-\u9fa5\（\）\《\》\——\；\，\。\“\”\>]$/gi; 
   
    function DHTMLpagenation(content) { with (this)
{
//本人时间所限，目前只有ie可用，用firefox不起作用
if (window.XMLHttpRequest) 
　{
　return ;
　}
　
        // client static html file pagenation

        this.content=content;
        this.contentLength=content.length;
        this.pageSizeCount;
        this.perpageLength=1000; //默认每页字节数.
        this.currentPage=1;
        this.regularExp=/\d+/;

        this.divDisplayContent;
        this.contentStyle=null;
        this.strDisplayContent="";
        this.divDisplayPagenation;
        this.strDisplayPagenation="";
        
        arguments.length==2?perpageLength=arguments[1]:'';

        try {
                divExecuteTime=document.createElement("DIV");
                document.body.appendChild(divExecuteTime);
        }
        catch(e)
        {
        }
        if(document.getElementById("hicontent"))
        {
                divDisplayContent=document.getElementById("hicontent");
        }
        else
        {
                try
                {
                        divDisplayContent=document.createElement("DIV");
                        divDisplayContent.id="hicontent";
                        document.body.appendChild(divDisplayContent);
                }
                catch(e)
                {
                        return false;
                }
        }

        if(document.getElementById("divPagenation"))
        {
                divDisplayPagenation=document.getElementById("divPagenation");
        }
        else
        {
                try
                {
                        divDisplayPagenation=document.createElement("DIV");
                        divDisplayPagenation.id="divPagenation";
                        document.body.appendChild(divDisplayPagenation);
                }
                catch(e)
                {
                        return false;
                }
        }


        DHTMLpagenation.initialize();
        return this;
        
}};
DHTMLpagenation.initialize=function() { with (this)
{
        divDisplayContent.className=contentStyle!=null?contentStyle:"divContent";
        if(contentLength<=perpageLength)
        {
                strDisplayContent=content;
                divDisplayContent.innerHTML=strDisplayContent;
                return null;
        }

        pageSizeCount=Math.ceil((contentLength/perpageLength));

        DHTMLpagenation.goto(currentPage);
        DHTMLpagenation.displayContent();
        
}};
DHTMLpagenation.displayPage=function() { with (this)
{
        strDisplayPagenation="  ";

        if(currentPage&&currentPage!=1)
                strDisplayPagenation+='<a href="javascript:void(0)" onclick="DHTMLpagenation.previous()"> << 上一页</a>  ';
        else
                strDisplayPagenation+="<< 上一页  ";


     strDisplayPagenation+=" ... ";
        if(currentPage&&currentPage!=pageSizeCount)
                strDisplayPagenation+='<a href="javascript:void(0)" onclick="DHTMLpagenation.next()">下一页 >> </a>  ';
        else
                strDisplayPagenation+="下一页 >>  ";


        divDisplayPagenation.innerHTML=strDisplayPagenation;
}};
DHTMLpagenation.previous=function() { with(this)
{
        DHTMLpagenation.goto(currentPage-1);
         }};
DHTMLpagenation.next=function() { with(this)
{
        DHTMLpagenation.goto(currentPage+1);
}};
DHTMLpagenation.goto=function(iCurrentPage) { with (this)
{
  
        
    currentPage=iCurrentPage;
        var c=content.substr((currentPage-1)*perpageLength,perpageLength).charAt(perpageLength-1);
        if(regularExp.test(iCurrentPage))
        {
          //currentPage=iCurrentPage;
          
        if (regExp.test(c) || c=="") 
        { 
          strDisplayContent=content.substr((currentPage-1)*perpageLength,perpageLength);
        } 
        else  
        { 
          for(var i=perpageLength;i<contentLength;i++)
          {
               
               if(regExp.test(c) || c=="")
               {
                strDisplayContent=content.substr((currentPage-1)*perpageLength,perpageLength);
                break;             
               }  
               else{ 
                      perpageLength++;                                
                     c=content.substr((currentPage-1)*perpageLength,perpageLength).charAt(perpageLength-1);
                 }                           
           }
             
        }
        }
        else
        {
                alert("page parameter error!");
        }        
        DHTMLpagenation.displayPage();
        DHTMLpagenation.displayContent(); 
}};
DHTMLpagenation.displayContent=function() { with (this)
{
        divDisplayContent.innerHTML=strDisplayContent;
}};
DHTMLpagenation.change=function(iPerpageLength) { with(this)
{
  
        if(regularExp.test(iPerpageLength))
        {
                DHTMLpagenation.perpageLength=iPerpageLength;
                DHTMLpagenation.currentPage=1;
                DHTMLpagenation.initialize();
        }
        }};

DHTMLpagenation(document.getElementById("hicontent").innerHTML,count);

    </script>