Hightlight words in free text using jQuery

You can use jQuery methods for highlighting specific words in free text.

The most sophisticated way to solve the problem was the use of a regular expression. Every appearance of the searchword will be surrounded with an span tag.

$('p:contains('+str+')').
each(function(){
var regex = new RegExp(str, "g");
$(this).html($(this).html().replace( regex ,""+str+""));
});