add 运行函数

Author: sudosiyang

lib/index.js

@@ -14,11 +14,11 @@ var JSeditor = CodeMirror.fromTextArea(document.getElementById("_js"), {
 	lineNumbers: true,
 	mode: 'javascript'
 });
-var iframeDOM=document.getElementById("preview").contentDocument;
-iframeDOM.write(HTMLeditor.getValue());
 addCSS();
 addJS();
 function addCSS () {
+	var iframeDOM=document.getElementById("preview").contentDocument;
+	iframeDOM.write(HTMLeditor.getValue());
 	var style=document.createElement("style");
 	style.innerHTML=CSSeditor.getValue();
 	iframeDOM.body.appendChild(style);
@@ -30,4 +30,14 @@ function addJS(){
 	iframeDOM.body.appendChild(script);*/
 
 	setTimeout(function(){document.getElementById("preview").contentWindow.eval(JSeditor.getValue());},1000);
+}
+function runCode(){
+	var a=document.getElementById("preview");
+	a.parentNode.removeChild(a);
+	var iframe=document.createElement("iframe");
+	iframe.setAttribute("frameborder","0");
+	iframe.setAttribute("id","preview");
+	document.getElementById("pre").appendChild(iframe);
+	addCSS();
+	addJS();
 }