// JavaScript Document
function RatImg(Img,blw,blh){
	var i=Img.width;
	var j=Img.height; 
	if (i>blw){
		var zjbl1=blw/i;
		var zjbl2=blh/j;
		if (zjbl1<zjbl2){
			zjbl=zjbl1;
		}
		else
		{
			zjbl=zjbl2;
		}
		i=i*zjbl;
		j=j*zjbl;
	}
	else
	{
		if (j>blh)
		{
			zjbl=blh/j;
			j=blh;
			i=i*zjbl;
		}
	}

	Img.width=i;
	Img.height=j;
}

//Ajax 开始
function Ajax_GetXMLHttpRequest() {
	if (window.ActiveXObject) {
		return new ActiveXObject("Microsoft.XMLHTTP");
	} 
	else if (window.XMLHttpRequest) {
		return new XMLHttpRequest();
	}
}

function Ajax_CallBack(FormName,ID,URL){
	//FormName,一般为flase
	//ID:页面上要显示的元素名称
	//URL：参数传递的页面
	var x = Ajax_GetXMLHttpRequest();
	var ID = document.getElementById(ID);
	x.open("get",URL);
	x.setRequestHeader("REFERER", location.href);
	x.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
	x.onreadystatechange = function(){
		if(x.readyState == 4 ){
			ID.innerHTML=unescape(x.responseText);
		}
		
	}
	x.send(null);
}
//调用方法：javascript:Ajax_CallBack(false,'type1_type2','/inc/type2.asp?id='+str);
//Ajax End