Don't mess with CSS, instead use API to set size

Instead of detecting & altering stylesheets, run through CM instances
and set the size
Needs to be done via setTimeout to avoid timing issues

lib/coder.js

@@ -70,7 +70,7 @@ var ICEcoder = {
 
 	// Set our layout according to the browser size
 	setLayout: function(dontSetEditor) {
-		var winW, winH, headerH, footerH, accountH, tabsBarH, findBarH, cMCSS;
+		var winW, winH, headerH, footerH, accountH, tabsBarH, findBarH, cM;
 
 		// Determin width & height available
 		winW = window.innerWidth ? window.innerWidth : document.body.clientWidth;
@@ -88,17 +88,12 @@ var ICEcoder = {
 		if (!dontSetEditor) {
 			this.editor.style.width = ICEcoder.content.style.width = (winW-this.filesW) + "px";
 			ICEcoder.content.style.height = (winH-headerH-footerH-tabsBarH-findBarH) + "px";
-
+			
 			// Resize the CodeMirror instances to match the window size
-			cMCSS = ICEcoder.content.contentWindow.document.styleSheets[2];
-			if (cMCSS) {
-				strCSS = cMCSS.rules ? 'rules' : 'cssRules';
-				for(var i=0;i<cMCSS[strCSS].length;i++) {
-					if(cMCSS[strCSS][i].selectorText==".CodeMirror-scroll") {
-						cMCSS[strCSS][i].style['height'] = ICEcoder.content.style.height;
-					}
-				}
-			}
+			setTimeout(function(){
+				for (i=0;i<top.ICEcoder.openFiles.length;i++) {
+				top.ICEcoder.content.contentWindow['cM'+ICEcoder.cMInstances[i]].setSize("100%",top.ICEcoder.content.style.height);
+			}},4);
 		}
 	},