// JavaScript Document

Event.observe(window, 'load', function() {	
									   
	// Gestion des drapeaux								   
	var original = $('enter').down(1).innerHTML;
	$$('.drapeau').each(function(el) {
		el.observe('mouseover', function(event) { $('enter').down(1).update(el.down(1).innerHTML) }).observe('mouseout', function(event) { $('enter').down(1).update(original) });	
	});
	
	// Centrage du site
	centrerSite();	
	Event.observe(document.onresize ? document : window, "resize", centrerSite);
	
});

	function centrerSite() {
		
		var height = document.viewport.getHeight();		
		var total_height = $('principale').getHeight();
		
		if(total_height < height) { 
			$('principale').setStyle({ top: '50%', marginTop: '-350px' }); 
		} else {
			$('principale').setStyle({ top: '0px', marginTop: '0px' }); 
		}
	}