$(document).ready(function(){
	 $("div.teaser").addClass("half").mouseover(function(){$(this).addClass("over");}).mouseout(function(){$(this).removeClass("over");});
	 $("div.teaser:odd").addClass("fright"); 
	 $("div.teaser:even").addClass("fleft"); 
	 $("div.teaser:odd").after('<div class="clear-block" style="clear: both"></div>'); 
});