write all element's style in the prototye of style. 将元素所有的样式写到style中，方便单文件复制。 mhtml的保存并不完整。

WebKit-Style.js

(function (G) {
	function simpleDOM(tagName){
		var dom = document.createElement(tagName);
		document.body.appendChild(dom);
		return dom;
	}
	function getDifStyle(el){
		var baseDOM = simpleDOM(el.tagName);
		var elStyle = getComputedStyle(el);
		var baseDOMStyle = getComputedStyle(baseDOM);
		var resultStyle = {};
		for(var i in elStyle){
			if (parseInt(i)!=i) {
				resultStyle[i] = elStyle[i];
			}
		}
		for(var i in resultStyle){
			if (i.indexOf("webkit")!==-1||resultStyle[i] === baseDOMStyle[i]) {
				delete resultStyle[i];
			}
		}
		delete resultStyle["cssText"];
		document.body.removeChild(baseDOM);
		return resultStyle;
	}
	G.getDifStyle = getDifStyle;
	G.writeAllStyle = function(){
		var allDOM = document.all;
		var catchStyle;
		var style;
		for(var i = 0,itemDOM;itemDOM = allDOM[i];i+=1){
			catchStyle = getDifStyle(itemDOM);
			style = itemDOM.style;
			for(var j in catchStyle){
				style[j] = catchStyle[j]
			}
			console.log("DOM in "+i);
		}
        console.log("style write ok!");
	}
}(window))