paginate.js

一个用java开发的具有搜索功能的图书管理系统

////////////////////页面     传递变量     本页面序数  显示列数  最大页序数 本页样式  其他样式    
function paginate(id,webPage,pageVariable,currentSerial,showCount,maxSerial,classon,classoff)
{
	var str="";
	var begin=currentSerial-Math.round(showCount/2-1);
	var end=currentSerial+Math.round(showCount/2-1);
	var begOffset=(begin<1)?(1-begin):0;
	var endOffset=(end>maxSerial)?(end-maxSerial):0;
	
	if(begOffset>0&&endOffset>0)
	{
		begin=1;
		end=maxSerial;
	}
	else
	{
		if(begOffset>0&&endOffset==0)
		{
			begin=1;
			end=(end+begOffset>maxSerial)?maxSerial:end+begOffset;
		}
		else
		{
			if(begOffset==0&&endOffset>0)
			{
				begin=(begin-endOffset<1)?1:begin-endOffset;
				end=maxSerial;
			}
		}
	}
	if(currentSerial>1)
	{
		str+="<A class="+classoff+" href='"+webPage+"?"+pageVariable+"="+1+"'>首页</A> ";
		str+="<A class="+classoff+" href='"+webPage+"?"+pageVariable+"="+(currentSerial-1)+"'>&lt;&lt;上一页</A> ";
	}
	for(var i=begin;i<=end;i++)
	{
		if(i==currentSerial)
		{
			str+="<SPAN class="+classon+">"+currentSerial+"</SPAN>";
		}
		else
		{
			str+="<A class="+classoff+" href='"+webPage+"?"+pageVariable+"="+i+"'>"+i+"</A> ";
		}
	}
	if(currentSerial<maxSerial)
	{
		str+="<A class="+classoff+" href='"+webPage+"?"+pageVariable+"="+(currentSerial+1)+"'>下一页&gt;&gt;</A> ";
		str+="<A class="+classoff+" href='"+webPage+"?"+pageVariable+"="+maxSerial+"'>尾页</A> ";
	}
	document.getElementById(id).innerHTML=str;
}