code: function(html, caretPos) {
  			var reTag = /^<\/?\w[\w\:\-]*.*?>/;
  			
  			// search left to find opening brace
  			var pos = caretPos;
  			while (pos > -1) {
  				if (html.charAt(pos) == '<') 
  					break;
  				pos--;
  			}
  			
  			if (pos != -1) {
  				var m = reTag.exec(html.substring(pos));
  				if (m && caretPos > pos && caretPos < pos + m[0].length)
  					return true;
  			}
  			
  			return false;
  		}
docs: Check if cursor is placed inside XHTML tag
  @param {String} html Contents of the document
  @param {Number} caretPos Current caret position inside tag
  @return {Boolean}