var ETNGpager = function( srcName, dstName, cntPP, cntPS )
{
		this.srcName= srcName;
		this.dstName= dstName;
		this.curP= 1;//默认当前页为第一页
		this.cntPP= cntPP || 2;//默认每页两条纪录
		this.cntPS= cntPS || 3;//默认每页显示5个分页上下文
		this.items= [];
		this.showPNP= true;/*显示上下页链接*/
		this.showType= true;/*滑动分页*/
		this.result= {pagedata:[],pagebar:'',limit:[0,0],report:''};
		this.parse();/*总纪录数*/
}
ETNGpager.prototype.page = function ()
{
	this.cntP= Math.ceil(this.cntR/this.cntPP);/*总页数*/
	this.cntS= Math.ceil(this.cntP/this.cntPS);/*总段数*/
	this.curS= Math.ceil(this.curP/this.cntPS);/*当前段*/
	this.preP= this.curP -1;/*上一页*/
	this.nextP= this.curP +1;/*下一页*/
	this.preS= this.curS -1;/*上一段*/
	this.nextS= this.curS +1;/*下一段*/
	this.startR= (this.curP -1)*this.cntPP + 1;/*起始纪录*/
	this.endR= (this.curP*this.cntPP >this.cntR)?this.cntR:this.curP*this.cntPP;/*结束纪录*/
	this.result['pagedata']=[];
	if(this.showType)
	{
		this.perSide= Math.floor(this.cntPS/2);
		this.startP= (this.curP > this.perSide)?(this.curP - this.perSide):1;
		this.endP= (this.startP + this.cntPS)>this.cntP?this.cntP:(this.startP + this.cntPS);
	}
	else
	{
		this.startP= (this.curS-1)*this.cntPS+1;
		this.endP= (this.curS*this.cntPS>this.cntP)?this.cntP:(this.curS*this.cntPS);
	}
	for(var i = this.startP;i<=this.endP;i++)
	{
		this.result['pagedata'].push((i==this.curP)?'<span class="curPage">'+i+'</span>':'<span onclick="page('+i+')">'+i+'</span>');
	}
	if(this.showPNP)
	{
		if(this.curP>1)this.result['pagedata'].unshift('<span onclick="page('+(this.curP-1)+')">上一页</span>');
		if(this.curP<this.cntP)this.result['pagedata'].push('<span onclick="page('+(this.curP+1)+')">下一页</span>');
	}
		this.result['pagebar']= this.result['pagedata'].join('&nbsp;&nbsp;');
		this.result['limit']= [this.startR,this.endR];
		this.result['report']= '<span style="margin-left:20px;"></span>共'+this.cntR+'条,当前页'+this.startR+'-'+this.endR+','+this.curP+'/'+this.cntP+'页';
}
ETNGpager.prototype.parse = function ()
{
	var obj = document.getElementById(this.srcName);
	for(var i = 0;i<obj.childNodes.length;i++)
	{
		if(obj.childNodes[i].nodeType!=3)this.items[this.items.length]=obj.childNodes[i].innerHTML;
	}
	this.cntR = this.items.length;
	return this.items.length;
}
ETNGpager.prototype.create=function()
{
	this.page();
	document.getElementById(this.dstName).innerHTML='<li>'+this.items.slice(this.startR-1,this.endR).join('</li><li>')+'</li>';
	document.getElementById("page").innerHTML='<span class="ctrlPages">'+this.result['pagebar']+this.result['report']+'</span>';
}