document.observe("dom:loaded", function() {
										
										
  // tabellen suchen / einfaerben
  $$('table').each(function(table){
				
			$(table).childElements().each(function(child)
					{
						document.i = 0;
							$(child).childElements().each(function(tr)	
							{
									document.i++;
									
									if(document.i % 2)
									{
										$(tr).style.background = "#ccc";
										$(tr).style.borderColor = "#ccc";
									}
							});
		
					});
	
			});
});