return html.replace(new RegExp('[ \t\r\n]+', 'g'), '').toLowerCase() == ""; 
return html.replace(new RegExp('[ \t\r\n]+', 'g'), '').toLowerCase() === ''; 
		function isEmpty(para) {			function isEmptyHTML(html) {				return html.replace(new RegExp('[ \t\r\n]+', 'g'), '').toLowerCase() == "";			}			// Check for images			if (para.getElementsByTagName("img").length > 0)				return false;			// Check for tables			if (para.getElementsByTagName("table").length > 0)				return false;			// Check for HRs			if (para.getElementsByTagName("hr").length > 0)				return false;			// Check all textnodes			var nodes = tinyMCE.getNodeTree(para, new Array(), 3);			for (var i=0; i<nodes.length; i++) {				if (!isEmptyHTML(nodes[i].nodeValue))					return false;			}			// No images, no tables, no hrs, no text content then it's empty			return true;		}
3623	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/3623/32d3515ec5cf941c718954b41f19cc777ee4a50e/tiny_mce_src.js/buggy/ain7-website/ain7/media/js/tiny_mce/tiny_mce_src.js