rem: if (this.isRealIE && n.nodeType == 1) { 
add: if (tinyMCE.isRealIE && n.nodeType == 1) { 
context: 	_isDuplicate : function(n) {		var i;		if (!this.settings.fix_content_duplication)			return false;		if (this.isRealIE && n.nodeType == 1) {			// Mark elements			if (n.mce_serialized == this.serializationId)				return true;			n.setAttribute('mce_serialized', this.serializationId);		} else {			// Search lookup table for text nodes  and comments			for (i=0; i<this.serializedNodes.length; i++) {				if (this.serializedNodes[i] == n)					return true;			}			this.serializedNodes[this.serializedNodes.length] = n;		}		return false;	}
meta: 2801	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/2801/9ba1064cc72da98d8345b71573721d41c077cd0b/TinyMCE_Cleanup.class.js/clean/jscripts/tiny_mce/classes/TinyMCE_Cleanup.class.js