var XCMenu = null;
var Publisher = "21cn.com";
var XCMinWidth = 80;
var XCMinHeight = 60;
var XCCuteCheckImgSrc = true;

if(document.readyState=="complete") {
	XCSetupMenu(document);
} else {
	document.onreadystatechange = function() {
		if(document.readyState=="complete") {
			XCSetupMenu(document);
		}
	}
}

function XCSetupMenu(doc) {
	if(typeof(doc.XCMenu)=="undefined") {
		doc.XCMenu = null;
		doc.XCMinWidth = XCMinWidth;
		doc.XCMinHeight = XCMinHeight;
		doc.XCCuteCheckImgSrc = XCCuteCheckImgSrc;
	}
	for(var i = 0; i<doc.images.length; ++i) {
		var img = doc.images[i];
		if(typeof(img.orig_onmouseover)=="undefined") {
			img.orig_onmouseover = img.onmouseover;
			img.orig_onmouseout = img.onmouseout;
		}
		img.onmouseover = XCRollOver;
		img.onmouseout = XCRollOut;
	}
}

function XCRollOver() {
	if(this.orig_onmouseover) {
		this.orig_onmouseover();
	}
	var doc = this.document;
	if(!doc.XCMenu) {
		doc.XCMenu = doc.createElement("A");
		doc.XCMenu.id = "XCSendIMG";
		doc.XCMenu.style.color = "black";
		doc.XCMenu.style.fontFamily = "宋体";
		doc.XCMenu.style.fontSize  = "9pt";
		doc.XCMenu.style.border = "solid 1px black";
		doc.XCMenu.style.backgroundColor = "yellow";
                doc.XCMenu.innerHTML = "保存此图片到手机";
		doc.XCMenu.style.padding = "3px";
		doc.XCMenu.target = "_blank";
		doc.XCMenu.style.position = "absolute";
		doc.XCMenu.style.visibility = "hidden";
		doc.XCMenu.onmouseout = function() {
			this.style.visibility = "hidden";
		}
	}
	doc.body.insertAdjacentElement("BeforeEnd", doc.XCMenu);
	if(this.width>=doc.XCMinWidth&&this.height>=doc.XCMinHeight) {
		var x = 0, y = 0;
		for(var obj = this; obj; obj = obj.offsetParent) {
			x += parseInt(obj.offsetLeft);
			y += parseInt(obj.offsetTop);
		}	
		doc.XCMenu.href = "http://mms.21cn.com/cooperation/step1.jsp?picUrl=" + ValueEncode(XCCalcSrc(this,doc.XCCuteCheckImgSrc));
		doc.XCMenu.target = "_blank";
		doc.XCMenu.style.left = x; //Math.max(x, stgcl(doc));
		doc.XCMenu.style.top = y; //Math.max(y, stgct(doc));
		doc.XCMenu.style.visibility = "";
	}
}

function XCRollOut() {
	var doc = this.document;
	if(doc.XCMenu) {
		if(this.orig_onmouseout) {
			this.orig_onmouseout();
		}
		var e = this.document.parentWindow.event;
		if(e.toElement&&e.toElement.id == "XCSendIMG") {
			return ;
		}
		doc.XCMenu.style.visibility = "hidden";
	}
}
function XCCalcSrc(img,CuteCheckImgSrc) {
	var ext = "";
	var href = "";
	for(var obj=img; obj&&CuteCheckImgSrc; obj = obj.parentElement) {
		if(obj.tagName=="A") {
			href = obj.href;
			ext = getextension(href).toLowerCase();
			break;
		}
	}
	return ext==".jpg"||ext==".jpeg"||ext==".jpe"||ext==".gif"||ext==".png" ? href : img.src;
}
function getextension(s) {
	var n=s.lastIndexOf('.');
	return n<0 ? "" : s.substring(n,s.length);
}
function ValueEncode(s) {
	var r =s;
	r = r.replace(/%/gi, "%25");
	r = r.replace(/ /gi, "%20");
	r = r.replace(/\t/gi, "%09");
	r = r.replace(/#/gi, "%23");
	r = r.replace(/\{/gi, "%7B");
	r = r.replace(/\}/gi, "%7D");
	r = r.replace(/\^/gi, "%5E");
	r = r.replace(/~/gi, "%7E");
	r = r.replace(/\[/gi, "%5B");
	r = r.replace(/\]/gi, "%5D");
	r = r.replace(/;/gi, "%3B");
	r = r.replace(/@/gi, "%40");
	r = r.replace(/=/gi, "%3D");
	r = r.replace(/&/gi, "%26");
	r = r.replace(/`/gi, "%60");
	r = r.replace(/\+/gi, "%2B");
	return r;
}
function stgcl(doc) {
	if (doc == null)
		return 0;
	if (doc.body == null)
		return 0;
	return doc.body.scrollLeft;
	return doc.documentElement.scrollLeft;
}
function stgct(doc) {
	if (doc == null)
		return 0;
	if (doc.body == null)
		return 0;
	return doc.body.scrollTop;
	return doc.documentElement.scrollTop;
}