document.write('<DIV id="loadingg"  style="HEIGHT:65px; WIDTH: 205px;POSITION: absolute; Z-INDEX:1000;border:3px #fff solid;text-align:center; font-size:12px; font-family:Arial, Helvetica, sans-serif;color:#660000;background:#222;opacity:.7;-moz-opacity:.7;filter: alpha(opacity=70); display:none;"><br/><font color="#FF6600"><strong>数据正在读取中,请等候...</strong></font><br/></DIV>')

function showloading() 
{
var obj=document.getElementById("loadingg")
if (obj.style.display!="")
{
obj.style.left=((document.documentElement.clientWidth-parseFloat (obj.style.width))/2)+document.documentElement.scrollLeft+"px";
obj.style.top=((document.documentElement.clientHeight-parseFloat (obj.style.height))/2)+document.documentElement.scrollTop+"px";
obj.style.display="";
}else{obj.style.display="none";}
}

function $(id)
{
	return document.getElementById(id);	
}
function echo(obj,html)
{
	$(obj).innerHTML=html;
}
function fopen(obj)
{
	$(obj).style.display="";
}
function fclose(obj)
{
	$(obj).style.display="none";
}
function createxmlhttp()
{
	var xmlhttp=false;
	try	{
  		xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
 	} 
	catch (e) {
  		try {
   			xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
  		} 
		catch (e) {
   			xmlhttp = false;
 		}
 	}
	if (!xmlhttp && typeof XMLHttpRequest!='undefined') {
  		xmlhttp = new XMLHttpRequest();
				if (xmlhttp.overrideMimeType) {//设置MiME类别
			xmlhttp.overrideMimeType('text/xml');
		}
	}	

	return xmlhttp;	
}

function getdata(url,obj1)
{
	    //getdata(url,obj1,obj2)
		var xmlhttp=createxmlhttp();
		if(!xmlhttp)
		{
			alert("你的浏览器不支持XMLHTTP！！");
			return;
		}
		showloading(); 
		xmlhttp.onreadystatechange=requestdata;
		xmlhttp.open("GET",url,true);
		xmlhttp.send(null);
		function requestdata()
		{
				//fopen(obj1);
				//echo(obj1,"正在加载数据，请稍等......");
				//alert(xmlhttp.readyState)
				if(xmlhttp.readyState==4)
				{
					if(xmlhttp.status==200)
					{
						//if(obj1!=obj2){fclose(obj1);};
						echo(obj1,xmlhttp.responseText);
						showloading();
					}
				}
		}
}
function postdata(url,obj,data)
{       //var rnd=Math.random()
		var xmlhttp=createxmlhttp();
		if(!xmlhttp)
		{
			alert("你的浏览器不支持XMLHTTP！！");
			return;
		}
		showloading();
		xmlhttp.open("POST", url, true);
		xmlhttp.onreadystatechange=requestdata;
		xmlhttp.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
		xmlhttp.send(data);
		function requestdata()
		{
			//fopen(obj);
			//echo(obj,"正在提交数据，请稍等......");
			if(xmlhttp.readyState==4)
			{
				if(xmlhttp.status==200)
				{
					echo(obj,xmlhttp.responseText);
					//alert(xmlhttp.responseText);
					showloading() 
				}
			}
			else
			{
				//echo(obj,xmlhttp.readyState);
		    }
		}
//echo(obj,data);
}

function lTrim(str)
{
  if (str.charAt(0) == " ")
  {
    //如果字串左边第一个字符为空格
    str = str.slice(1);//将空格从字串中去掉
    //这一句也可改成 str = str.substring(1, str.length);
    str = lTrim(str);    //递归调用
  }
  return str;
}

//去掉字串右边的空格
function rTrim(str)
{
  var iLength;
  
  iLength = str.length;
  if (str.charAt(iLength - 1) == " ")
  {
    //如果字串右边第一个字符为空格
    str = str.slice(0, iLength - 1);//将空格从字串中去掉
    //这一句也可改成 str = str.substring(0, iLength - 1);
    str = rTrim(str);    //递归调用
  }
  return str;
}

//去掉字串两边的空格
function trim(str)
{
  return lTrim(rTrim(str));
}

function f(obj)
{
	return trim(eval("document.ajax_post."+obj+".value"));
	//return trim($(obj).value);
}