Widget:Highlight

<script> jQuery.fn.highlight = function(pat, className) {

function innerHighlight(node, pat) {
 var skip = 0;
 if (node.nodeType === 3) {
  var pos = node.data.toUpperCase().indexOf(pat.toUpperCase()); 
  if (pos >= 0) {
   var spannode = document.createElement('span');
   spannode.className = className || 'highlight';
   var middlebit = node.splitText(pos);
   var endbit = middlebit.splitText(pat.length);
   var 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 += innerHighlight(node.childNodes[i], pat);
  }
 }
 return skip;
}
return this.each(function() {
 innerHighlight(this, pat.toUpperCase());
});

};

jQuery.fn.removeHighlight = function(className) {

var className = className || 'highlight';

function newNormalize(node) {
   for (var i = 0, children = node.childNodes, nodeCount = children.length; i < nodeCount; i++) {
       var child = children[i];
       if (child.nodeType == 1) {
           newNormalize(child);
           continue;
       }
       if (child.nodeType != 3) { continue; }
       var next = child.nextSibling;
       if (next == null || next.nodeType != 3) { continue; }
       var combined_text = child.nodeValue + next.nodeValue;
       new_node = node.ownerDocument.createTextNode(combined_text);
       node.insertBefore(new_node, child);
       node.removeChild(child);
       node.removeChild(next);
       i--;
       nodeCount--;
   }
}

return this.find("span."+className).each(function() {
   var thisParent = this.parentNode;
   thisParent.replaceChild(this.firstChild, this);
   newNormalize(thisParent);
}).end();

};

$(function() {$('#searchresults').highlight();});

</script>