//ajax 控件
function pageajax(){
	var xhrobj=null;
	if(window.xmlhttprequest)
	{
	xhrobj=new xmlhttprequest();
	}
	else if(window.activexobject)
	{
	try{
	xhrobj=new activexobject("microsoft.xmlhttp");
	}
	catch(e1)
	{
	try{
	xhrobj=new activexobject("msxml2.xmlhttp");
	}
	catch(e2){
	try{
	xhrobj=new activexobject("msxml3.xmlhttp");
	}
	catch(e3){
	alert("创建ajax失败："+e3)
	}
	}
	}
	}
	else
	{
	alert("未能识别的浏览器");
	}
	return xhrobj;
}

function page(curpage,labelid,classid,installdir,url,refreshtype,specialid)
   {
   this.labelid=labelid;
   this.classid=classid;
   this.url=url;
   if (labelid.substring(0,5)=="{sql_")
   {
	var slabelid=labelid.split('(')[0];
    slabelid=slabelid.replace("{","");
    this.c_obj="c_"+slabelid;
    this.p_obj="p_"+slabelid;
   }
   else
   {
   this.c_obj="c_"+labelid;
   this.p_obj="p_"+labelid;
   }
   this.installdir=installdir;
   this.refreshtype=refreshtype;
   this.specialid=specialid;
   this.page=curpage;
   loaddata(1);
   }
function loaddata(p)
{  this.page=p;
   var xhr=new pageajax();
   xhr.open("get",installdir+url+"?labelid="+escape(labelid)+"&classid="+classid+"&refreshtype="+refreshtype+"&specialid=" +specialid+"&curpage="+p+geturlparam(),true);
   xhr.onreadystatechange=function (){
	         if(xhr.readystate==1)
			  {
				 if (p==1)
				eval('document.all.'+c_obj).innerhtml="<div align='center'><img src='"+installdir+"images/loading.gif'>正在连接服务器...</div>";
			  }
			  else if(xhr.readystate==2 || xhr.readystate==3)
			  {
				if (p==1)
				eval('document.all.'+c_obj).innerhtml="<div align='center'><img src='"+installdir+"images/loading.gif'>正在读取数据...</div>";
			  }
			  else if(xhr.readystate==4)
			  {
			 if (xhr.status==200)
			 {
				  var pagearr=xhr.responsetext.split("{ks:page}")
				  var pageparamarr=pagearr[1].split("|");
				  count=pageparamarr[0];    
				  perpagenum=pageparamarr[1];
				  pagecount=pageparamarr[2];
				  itemunit=pageparamarr[3];   
				  itemname=pageparamarr[4];
				  pagestyle=pageparamarr[5];
				  getobject(c_obj).innerhtml=pagearr[0];
				  pagelist();
			 }
			}
	   }
    xhr.send(null); 
}
//取url传的参数
function geturlparam()
{
	var urlparams = new object() ;
	var aparams = document.location.search.substr(1).split('&') ;//substr(n,m)截取字符从n到m,split('o')以o为标记,分割字符串为数组
	var sum=new array(aparams.length);//定义数组
	for (i=0 ; i < aparams.length ; i++) {
	sum[i]=new array();
	var aparam = aparams[i].split('=') ;//以等号分割
	urlparams[aparam[0]] = aparam[1] ;
	sum[i][0]=aparam[0];
	sum[i][1]=aparam[1];
	}
	var p='';
	for(i=0;i<sum.length;i++)
	{
	  p=p+'&'+sum[i][0]+"="+sum[i][1]
	}
   return p;	
}
function getobject(id) 
{
	if(document.getelementbyid) 
	{
		return document.getelementbyid(id);
	}
	else if(document.all)
	{
		return document.all[id];
	}
	else if(document.layers)
	{
		return document.layers[id];
	}
}

function pagelist()
{
 var n=1;	
 var statushtml=null;
 switch(parseint(this.pagestyle))
 {
  case 1:	
     statushtml="共"+this.count+this.itemunit+" <a href=\"javascript:homepage(1);\" title=\"首页\">首页</a> <a href=\"javascript:previouspage()\" title=\"上一页\">上一页</a>&nbsp;<a href=\"javascript:nextpage()\" title=\"下一页\">下一页</a> <a href=\"javascript:lastpage();\" title=\"最后一页\">尾页</a> 页次:<font color=red>"+this.page+"</font>/"+this.pagecount+"页 "+this.perpagenum+this.itemunit+this.itemname+"/页";
		break;
  case 2:
	 statushtml="<a href='#'>"+this.pagecount+"页/"+this.count+this.itemunit+"</a> <a href=\"javascript:homepage(1);\" title=\"首页\"><span style='font-family:webdings;font-size:14px'>9</span></a> <a href=\"javascript:previouspage()\" title=\"上一页\"><span style='font-family:webdings;font-size:14px'>7</span></a>&nbsp;";
	 var startpage=1;
	 if (this.page==10)
	   startpage=2;
	 else if(this.page>10)
	   startpage=eval((parseint(this.page/10)-1)*10+parseint((this.page)%10)+2);
	  for(var i=startpage;i<=this.pagecount;i++){ 
		  if (i==this.page)
		   statushtml+="<a href=\"#\"><font color=\"#ff0000\">"+i+"</font></a>&nbsp;"
		  else
			statushtml+="<a href=\"javascript:turn("+i+")\">"+i+"</a>&nbsp;"
			n=n+1;
		  if (n>10) break;
	  }
	 statushtml+="<a href=\"javascript:nextpage()\" title=\"下一页\"><font face=webdings>8</font></a> <a href=\"javascript:lastpage();\" title=\"最后一页\"><span style='font-family:webdings;font-size:14px'>:</span></a>";
	 statushtml="<span class='kspage'>"+statushtml+"</span>";
	break;	 
  case 4:
	 statushtml="共"+this.pagecount+"页/"+this.count+this.itemunit+this.itemname+" <a href=\"javascript:homepage(1);\" title=\"首页\"><span style='font-family:webdings;font-size:14px'>9</span></a> <a href=\"javascript:previouspage()\" title=\"上一页\"><span style='font-family:webdings;font-size:14px'>7</span></a>&nbsp;";
	  for(var i=this.page;i<=this.pagecount;i++){ 
		  if (i==this.page)
		   statushtml+="<b><font color=\"#ff0000\">"+i+"</font></b>&nbsp;"
		  else
			statushtml+="<a href=\"javascript:turn("+i+")\">["+i+"]</a>&nbsp;"
			n=n+1;
		  if (n>10) break;
	  }
	 statushtml+="<a href=\"javascript:nextpage()\" title=\"下一页\"><font face=webdings>8</font></a> <a href=\"javascript:lastpage();\" title=\"最后一页\"><font face=webdings>:</font></a>";
	break;	 
  case 3:
     statushtml="第<font color=#ff000>"+this.page+"</font>页 共"+this.pagecount+"页 <a href=\"javascript:homepage(1);\" title=\"首页\"><<</a> <a href=\"javascript:previouspage()\" title=\"上一页\"><</a>&nbsp;<a href=\"javascript:nextpage()\" title=\"下一页\">></a> <a href=\"javascript:lastpage();\" title=\"最后一页\">>></a> "+this.perpagenum+this.itemunit+this.itemname+"/页";
   break;
 }
	 statushtml+="&nbsp;第<select name=\"goto\" onchange=\"turn(parseint(this.value));\">";
	  for(var i=1;i<=this.pagecount;i++){
		 if (i==this.page)
		 statushtml+="<option value='"+i+"' selected>"+i+"</option>";
		 else
		 statushtml+="<option value='"+i+"'>"+i+"</option>";
	  }	
	 statushtml+="</select>页";
	 getobject(this.p_obj).innerhtml=statushtml;
}
function homepage()
{
   if(this.page==1)
    alert("已经是首页了！")
   else
   loaddata(1);
} 
function lastpage()
{
   if(this.page==this.pagecount)
    alert("已经是最后一页了！")
   else
   loaddata(this.pagecount);
} 
function previouspage()
{
   if (this.page>1)
      loaddata(this.page-1);
   else
      alert("已经是第一页了");      
}

function nextpage()
{
   if(this.page<this.pagecount)
      loaddata(this.page+1);
   else
      alert("已经到最后一页了");
}
function turn(i)
{
     loaddata(i);
}