// JavaScript Document
//获取验证码的 回调函数
function GetAjax_CallBack(str, id) {
	document.getElementById(id).innerHTML = str;
}
//获取验证码的主ajax代码
function GetCodeAjax(tmpurl) {
	var httpRequest = new HttpRequest();
	with (httpRequest) {
		init();
		doSetCallBack(GetAjax_CallBack, "Ease_codeimg");//设置回调函数
		doSendResuest(tmpurl, "POST", httpRequest); //异步页面请求
	}
}

//图片加载完成后按最大宽高等比缩放
function resize(o,mw,mh){
	var ow=o.width,oh=o.height,os=ow/oh,w=mw||120,h=mh||120,s=w/h;
	o.setAttribute('oldheight',oh)
	if(os>s){
		if(ow>w){
			o.width=w;o.height=w/os;
		}
	}else{
		if(oh>h){
			o.height=h;o.width=parseInt(h*os)
		}
	}
	if(o.height<h){
		o.style.marginTop=(h-o.height)/2+'px'
	}
}

//图片加载完成后按最大宽高等比缩放,不设置图片边距
function resizex(o,mw,mh){
	var ow=o.width,oh=o.height,os=ow/oh,w=mw||120,h=mh||120,s=w/h;
	o.setAttribute('oldheight',oh)
	if(os>s){
		if(ow>w){
			o.width=w;o.height=w/os;
		}
	}else{
		if(oh>h){
			o.height=h;o.width=parseInt(h*os);
		}
	}
}

//图片加载出错时替换成默认图片,同时也解决了ie6的over stack问题
function errorload(o,mw,mh){
	var w=mw||80,h=mh||80;
	var img=new Image();
	img.src="http://www.jianlanyard.com/common/images/en_nopic.gif";
	img.width=w;
	img.height=h;
	img.onerror = null;
	o.parentNode.replaceChild(img, o)
}

//select在IE下的BUG
function select_fix_ie(el) {
	var isOpen = $(el).data("isOpen");
	if (isOpen != null) {
		return;
	}

	$(el).mousedown(function() {
				var isOpen = $(this).data("isOpen");
				if (isOpen) {
					return;
				}
				$(this).data("isOpen", true);

				var clone_selection = $(this).data("clone");
				if (clone_selection == null) {
					clone_selection = $("<div></div>").get(0);
					$(clone_selection).insertAfter(this);
					$(clone_selection).css("display", "block");
					$(clone_selection).css("width", $(this).css("width"));
					$(clone_selection).css("height", "20px");
					$(clone_selection).css("position", $(this).css("position"));
					$(clone_selection).css("z-index", $(this).css("z-index"));
					$(this).data("clone", clone_selection);
				}

				$(clone_selection).show();
				$(clone_selection).css("visibility", "hidden");

				var position = $(this).position();
				var oldWidth = $(this).width();
				$(this).css("width", "auto");
				var newWidth = $(this).width();
				if (oldWidth >= newWidth) {
					$(this).css("width", $(clone_selection).css("width"));
				}
				$(this).css("top", position.top + "px");
				$(this).css("left", position.left + "px");
				$(this).css("position", "absolute");
				$(this).css("z-index", "1000");
			}).blur(function() {
				select_fix_ie_close(this);
			}).change(function() {
				select_fix_ie_close(this);
			})

	$(el).data("isOpen", false);
}

function select_fix_ie_close(el) {
	var isOpen = $(el).data("isOpen");
	if (isOpen) {
		var clone_selection = $(el).data("clone");
		$(clone_selection).css("display", "none");
		$(el).css("position", "");
		$(el).css("width", $(clone_selection).css("width"));
		$(el).css("top", "");
		$(el).css("left", "");
		$(el).css("z-index", $(clone_selection).css("z-index"));
		$(el).data("isOpen", false);
	}
}