var AJAX={
http_request:false,
DivObj:null,
waitstate:null,
success:null,
get:function (divid,url) {
AJAX.http_request = false;
AJAX.DivObj = document.getElementById(divid);
if(window.XMLHttpRequest) { //Mozilla 浏览器
AJAX.http_request = new XMLHttpRequest();
if (AJAX.http_request.overrideMimeType) {//设置MiME类别
AJAX.http_request.overrideMimeType('text/xml');
}
}else if (window.ActiveXObject) { // IE浏览器
try {
AJAX.http_request = new ActiveXObject("Msxml2.XMLHTTP");
} catch (e) {
try {
AJAX.http_request = new ActiveXObject("Microsoft.XMLHTTP");
} catch (e) {}
}
}
if (!AJAX.http_request) {
window.alert("不能创建XMLHttpRequest对象实例.");
return false;
}
AJAX.http_request.onreadystatechange = AJAX.processRequest;
AJAX.http_request.open("GET", url+"&"+Math.random(), true);
AJAX.http_request.send(null);
},
processRequest:function () {
if (AJAX.http_request.readyState == 4) {
if (AJAX.http_request.status == 200) {
if(AJAX.DivObj!=null){
AJAX.DivObj.innerHTML=AJAX.http_request.responseText;
}
} else {
alert("您所请求的页面有异常。");
}
}else{
if(AJAX.DivObj!=null){
AJAX.DivObj.innerHTML='
请等待...
';
}
}
}
}
function makesmallpic(obj,w,h){
var srcImage = new Image();
srcImage.src=obj.src;
var srcW=srcImage.width;
var srcH=srcImage.height;
if (srcW==0)
{
obj.src=srcImage.src;
srcImage.src=obj.src;
var srcW=srcImage.width;
var srcH=srcImage.height;
}
if (srcH==0)
{
obj.src=srcImage.src;
srcImage.src=obj.src;
var srcW=srcImage.width;
var srcH=srcImage.height;
}
if(srcW>srcH){
if(srcW>w){
obj.width=newW=w;
obj.height=newH=(w/srcW)*srcH;
}else{
obj.width=newW=srcW;
obj.height=newH=srcH;
}
}else{
if(srcH>h){
obj.height=newH=h;
obj.width=newW=(h/srcH)*srcW;
}else{
obj.width=newW=srcW;
obj.height=newH=srcH;
}
}
if(newW>w){
obj.width=w;
obj.height=newH*(w/newW);
}else if(newH>h){
obj.height=h;
obj.width=newW*(h/newH);
}
}