window.addEvent("domready", function() {

var allsize = 0;
var itemcount = 0;
var fixedwidth = 680;
$('layout-teaser').getElements('div.teaser-item').each( 
	function(item,index)
	{
		var size = item.getSize();
		allsize += size.x;
		itemcount++;
	}
)

var marginsize = Math.floor((fixedwidth - allsize)/itemcount);

$('layout-teaser').getElements('div.teaser-item').each( 
	function(item,index)
	{
		item.setStyle('margin-right', marginsize );
	}
)

} )