public_page_bar_include.js

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//just for bbs.zol.com.cn,to produce page bar
//zhangcy 2006-3-5
var page,i,j,start,baseurl,end_page,last_page,last_page_url='',next_page,next_page_url='';
var gotopage=0;
var param_arr=location.href.split("_");
var end_arr=param_arr[param_arr.length-1].split(".");
if(param_arr.length > 3){
    page=end_arr[0];    //当前页码
    baseurl=param_arr[0]+"_"+param_arr[1]+"_"+param_arr[2];
}else{
    page=0;
    baseurl=param_arr[0]+"_"+param_arr[1]+"_"+end_arr[0];
}
page=parseInt(page);
start=page-5;   //当前页前显示8页
if(start < 0){
    start=0;
}

try{
    if(!start){
        end_page=(10>pages)?pages:10;
    }else{
        end_page=((5+page)>pages)?pages:(5+page);
    }

    //the page before current page is:
    if(page>1){
        last_page=page-1;
        if(last_page<=1){
            last_page_url=baseurl+'.html';
        }else{
            last_page_url=baseurl+"_"+last_page+'.html';
        }
    }

    //the page after current page is:
    if(page<pages && pages >1){
        if(page==0){
            next_page=2;
        }else{
            next_page=page+1;
        }
        next_page_url=baseurl+"_"+next_page+'.html';
    }

    content_str+="</td>";
    if(last_page_url.length > 10){
        content_str+="<td class='pagebar' nowrap width=17 align=center style=\"padding-top:3px;\">";
        content_str+="<a href='"+last_page_url+"' title='上一页' style=\"color:#0084E6;\">&lt;</A></td>";
    }

    //here to list the nums
    for(i=start;i<end_page;i++){
        j=i+1;
        content_str+="<td width=17 class='pagebar' align=center style='padding-top:3px;'>";
        if(j==page || (j==1 && page==0)){
            content_str+="<font color='#0084E6' style='text-decoration:underline;font-weight:bold;'>"+j+"</font>";
        }else if(i==0){
            content_str+="<a href='"+baseurl+".html' style='color:#0084E6;'>"+j+"</a>";
        }else{
            content_str+="<a href='"+baseurl+"_"+j+".html' style='color:#0084E6;'>"+j+"</a>";
        }
        content_str+="</tD>";
    }
    if(next_page_url.length > 10){
        content_str+="<td class='pagebar' nowrap width=5% style=\"color:#0084E6;padding-top:3px;\">";
        content_str+="<a href='"+next_page_url+"' title='下一页' style=\"color:#0084E6;\">&gt;</A>";
        content_str+="</td>";
    }

    content_str+="<td class='pagebar' nowrap width=3% style=\"color:#0084E6;padding-top:3px;\">";
    if(pages > 1){
        content_str+='<a href="'+baseurl+"_"+pages+'.html" style="color:#0084E6;">尾页</a>';
    }else{
        content_str+='<a href="'+baseurl+'.html" style="color:#0084E6;">尾页</a>';
    }

    content_str+='</td><td align=left width=80 nowrap style="color:#0084E6;padding-left:4px;border-top:1px solid #C2E2F5;border-bottom:1px solid #C2E2F5;">';
    content_str+='跳转至<input type="text" name="page_jump" size=2 class=box style="height:17px;margin-left:1px;margin-right:1px;">页</td>';
    content_str+='<td width=37 style="border-top:1px solid #C2E2F5;border-bottom:1px solid #C2E2F5;"><input type="button" style="width:25px;height:20px;" onClick="jumpTo();" value="go">';
    content_str+='</td>';
    content_str+='<td nowrap align=right style="padding-right:5px;padding-top:3px;border-top:1px solid #C2E2F5;border-bottom:1px solid #C2E2F5;">';
    content_str+='&nbsp;';
    if(page>1){
        content_str+='<a href="'+last_page_url+'" class="a_css1b">上一页</a>';
    }
    if(page<pages && pages >1){
        content_str+='&nbsp;<a href="'+next_page_url+'" class="a_css1b">下一页</a>';
    }
    content_str+='</td></tR>';
    content_str+='</table>';
	document.getElementById('page_bar_top').innerHTML=content_str;
	document.getElementById('page_bar').innerHTML=content_str;
}catch(e){}

//functions to jump page
//zhangcy 2006-3-11
function jumpTo(){
    var textobj=document.getElementsByName("page_jump");
    if(textobj[0].value){
        var goPage = textobj[0].value;
    }else{
        var goPage = textobj[1].value;
    }
    goPage=parseInt(goPage);
    if(!isNaN(goPage) && goPage > 0 && goPage <= pages){
        if(1==goPage){
            location.href=baseurl+".html";
        }else{
            location.href=baseurl+"_"+goPage+".html";
        }
    }else{
        alert("正确填些了页数？");
        document.getElementById('page_jump').focus();
    }
}