Search engine in Ajax jQuery

[Filez]

I need help with writing a query to the mysql database.I want to do search like this: http://www.spijay.com/demo/szukajka.pngTexts in red are part of the click, then the ajax jQuery script finds the results.Here is my JS code:\[code\] $(window).load(function() { $(".filtr").click(function() { $.ajax({ url: 'function.php', data: { funkcja: 'szukaj' }, type: 'post', success: function(output) { $("#wyniki").append(output); return false; } }); }); });\[/code\]HTML CODE:\[code\] <div id="filtr-body"> <div id="filtr-kolor"> <span class="filtr-name">Kolor</span> <div class="filtr" id=""><img src="http://stackoverflow.com/questions/15801329/images/wina-i.png" /> Czerwone</div> <div class="filtr"><img src="http://stackoverflow.com/questions/15801329/images/wina-i.png" /> Bia?e</div> <div class="filtr"><img src="http://stackoverflow.com/questions/15801329/images/wina-i.png" /> R