var PageCtl={
	curpage:1, //当前页数
	pagesize:1,//每页显示多少条数据
	pagecount:1,//总的页数
	totalrecords:1,//总的数据量
	orderby:"s1",
	setPageSize:function(pagesize)
	{
		this.pagesize=pagesize;
		this.curpage=1;
		this.refreshCurPage();
	},
	buildPageCode:function(mode)
	{
		var STEPS=6;  //以当前页码为中心向前/后索引的页码数
		var beginPage=this.curpage-STEPS;
		var endPage=beginPage+STEPS*2;
		if (beginPage<1)beginPage=1;		
		if (endPage>this.pagecount)endPage=this.pagecount;	
		var strlink='<div class="pageNum" style="margin:0;">';		
		if(this.curpage>1)
		{
			strlink+='<a class="btn" href="javascript:PageCtl.prevPage();"><img src="../../images/btn_pre1.gif" alt="上一页" /></a>';			
		}
		for (i=beginPage;i<=endPage;i++){
			if (i==this.curpage)
				strlink+='<a class="on" >'+i+'</a>';
			else {
				strlink+='<a href="javascript:PageCtl.changepage('+i+')">'+i+'</a> ';
			}
		}
		if(this.curpage<this.pagecount)
		{
			strlink+='<a class="btn" href="javascript:PageCtl.nextPage();"><img src="../../images/btn_next1.gif" alt="下一页" /></a>';
		}
		strlink+='</div>';
		document.write(strlink);strlink='';
		if(mode==1)
		{
			strlink+='<select id="orderby_up" onchange="PageCtl.changOrderBy_up();">';
			if(this.orderby=="1"){
				strlink+='<option value="1" selected>在线状态</option>';
			}else{
				strlink+='<option value="1">在线状态</option>';
			}
			if(this.orderby=="credit"){
				strlink+='<option value="credit" selected>信用度由高到低</option>';
			}else{
				strlink+='<option value="credit">信用度由高到低</option>';
			}

			if(this.orderby=="active"){
				strlink+='<option value="active" selected>活跃度由高到低</option>';
			}else{
				strlink+='<option value="active">活跃度由高到低</option>';
			}
			if(this.orderby=="3"){
				strlink+='<option value="3" selected>服务价格高到低</option>';
			}else{
				strlink+='<option value="3">服务价格高到低</option>';
			}
			if(this.orderby=="2"){
				strlink+='<option value="2" selected>服务价格低到高</option>';
			}else{
				strlink+='<option value="2">服务价格低到高</option>';
			}			
			strlink+='</select>';
			document.write(strlink);
		}		
		strlink=null;
	},
	firstPage:function(){
		this.curpage=1;
		this.refreshCurPage();
	},
	prevPage:function()
	{
		if(this.curpage>1)
		{
			this.curpage--;	
			this.refreshCurPage();
		}
	},
	endPage:function(){
		this.curpage=this.pagecount;
		this.refreshCurPage();
	},
	nextPage:function()
	{
		if(this.curpage<this.pagecount)
		{
			this.curpage++;		
			this.refreshCurPage();
		}
	},
	refreshCurPage:function()
	{
		var curURL=this.getNewURL();
		location.href=curURL;
	},
	getNewURL:function()
	{
		var curURL=location.href;
		var SEP="&";
		i=curURL.indexOf("curpage");
		if(i>0)
		{
			curURL=curURL.substring(0,i-1);
		}
		i=curURL.indexOf("?");
		if(i<0)
		{
			SEP="?";
		}
		if(this.curpage<=0)this.curpage=1;
		//if(this.curpage>this.pagecount)this.curpage=this.pagecount;
		curURL+=SEP+"curpage="+this.curpage+"&pagesize="+this.pagesize;
		return curURL;
	},
	gotoPage:function()
	{
		var newpagenum=document.getElementById("gotopage");
		if(!(/^[-+]?[\d]+$/i.test(newpagenum.value)))
		{
			alert("请输入数字！");
			newpagenum.value="1";
			newpagenum.focus();
			newpagenum.select();
		}else{
			this.curpage=newpagenum.value;
			this.refreshCurPage();
		}
	},
	changOrderBy:function(orderby)
	{
		var curURL=location.href;
		i=curURL.indexOf("orderby");
		if(i>0)
		{
			curURL=curURL.substring(0,i-1);
		}
		i=curURL.indexOf("curpage");
		if(i>0)
		{
			curURL=curURL.substring(0,i-1);
		}
		var SEP="&";
		i=curURL.indexOf("?");
		if(i<0)
		{
			SEP="?";
		}
		curURL+=SEP+"orderby="+orderby;
		
		if(this.curpage<=0)this.curpage=1;
		if(this.curpage>this.pagecount)this.curpage=this.pagecount;
		curURL+="&curpage="+this.curpage+"&pagesize="+this.pagesize;
		location.href=curURL;
	},
	changOrderBy_up:function()
	{
		var orderby=document.getElementById("orderby_up");
		this.changOrderBy(orderby.value);
	},
	changOrderBy_down:function()
	{
		var orderby=document.getElementById("orderby_down");
		this.changOrderBy(orderby.value);
	},
	changepage:function(page){
		this.curpage = page;
		this.refreshCurPage();
	}

}