/*

highlight v2

Highlights arbitrary terms.

<http://johannburkard.de/blog/programming/javascript/highlight-javascript-text-higlighting-jquery-plugin.html>

MIT license.

Johann Burkard
<http://johannburkard.de>
<mailto:jb@eaio.com>

Modified by Pavel Hrbacek to insert HTML link together with class name
*/

$(function(node, te, insertURL) {

	function isNodesChild(o, node) {
		var parent = o.parentNode;
		alert(parent);
		/*
		while (parent != o && parent != null) {
			if (parent == node || o == node) return true;
			parent = o.parentNode;
		};
		*/
		return (o == node);
	}

 jQuery.highlight = document.body.createTextRange ? 

/*
Version for IE using TextRanges.
*/
  function(node, te, insertURL) {
   var r = document.body.createTextRange();
   r.moveToElementText(node);
   
   for (var i = 0; r.findText(te.toUpperCase(), 100000, 2); i++) {
//    r.pasteHTML('<span class="highlight">' +  r.text + '<\/span>');
 	 r.pasteHTML('<a href="'+ insertURL +'" class="highlight" title="Click here to get more info about this term.">' +  r.text + '<\/a>');
      r.collapse(false);
   }
  }

 :

/*
 (Complicated) version for Mozilla and Opera using span tags.
*/
  function(node, te, insertURL) {
   var pos, skip, spannode, middlebit, endbit, middleclone, chrS, chrE, goAhead;
   skip = 0;
   if (node.nodeType == 3) {
 //  pos = node.data.toUpperCase().indexOf(te);
 	pos = node.data.toUpperCase().indexOf(te.toUpperCase()); 
 
    if (pos >= 0) {
		chrS = (pos == 0)? '' : node.data.substr(pos-1,1); 
    		chrE = (pos == (node.data.length-1))? '' : node.data.substr(pos+te.length,1);
   	//	goAhead = (chrS == null || chrS=='' || chrS==' ' || chrS=='.' || chrS==',' || chrS==';') && (chrE == null || chrE=='' || chrE==' ' || chrE=='.' || chrE==',' || chrE==';')
 		goAhead = (chrS == null || chrS=='' || ("\n\t\'\"\\ .,;:=*/".indexOf(chrS) >= 0)) && (chrE == null || chrE=='' || ("\n\t\'\"\\ .,;:=*/".indexOf(chrE) >= 0) );
  // 		goAhead = (chrE == null || chrE=='' || ("\'\"\\ .,;:=*/".indexOf(chrE) >= 0) );
   		
//   		alert(">"+chrS + "->" +  ("\'\"\\ .,;:=*/".indexOf(chrS) >= 0) );   		
//   		alert(">"+chrE + "->" +  ("\'\"\\ .,;:=*/".indexOf(chrE) >= 0) );
   		
   		if (goAhead === true) 
   		{
		     spannode = document.createElement('a');
     		spannode.className = 'highlight';
	     	spannode.href = insertURL;
	     	spannode.title = "Click here to get more info about this term.";
	     	middlebit = node.splitText(pos);
		     endbit = middlebit.splitText(te.length);
     		middleclone = middlebit.cloneNode(true);
		     spannode.appendChild(middleclone);
     		middlebit.parentNode.replaceChild(spannode, middlebit);
	     	skip = 1;
	    	}
    }
   }
   else if (node.nodeType == 1 && node.childNodes && !/(script|style)/i.test(node.tagName)) {
    for (var i = 0; i < node.childNodes.length; ++i) {
     i += $.highlight(node.childNodes[i], te, insertURL);
    }
   }
   return skip;
  }

 ;
});

jQuery.fn.removeHighlight = function() {
 this.find("span.highlight").each(function() {
  with (this.parentNode) {
   replaceChild(this.firstChild, this);
   normalize();
  }
 });
 return this;
};