function Popup(element)
	{
		($(element)).observe('click', function() {
		    window.open(($(element)).readAttribute('href'));		    
		});
		
		($(element)).onclick = function() {return false;};		
	}
	
	function SetPopupObservers(watch)
	{
		var elems = $$(watch); 
		// Depreciated in prototype 1.6.x --> $($(watch)).getElementsByClassName('popup');
		
		$($(elems)).each(function(item) {			
			Popup(item);
		});
		
	}

	SetPopupObservers('.popup');