// JavaScript Document

	Event.observe(window, 'load', function() {	
										 
	 	// Gestion de la hauteur d'écran
		resizePrincipale();
		
		Event.observe(document.onresize ? document : window, "resize", resizePrincipale);

	});
	
	function resizePrincipale() {
		var height = document.viewport.getHeight();
		var header_height = $('header').getHeight();
		var content_height = $('page').getHeight();
		var total_height = parseInt(header_height)+parseInt(content_height);
		var height_ideal = parseInt(height-header_height);
		
		if(total_height < height) {
			$('page').setStyle({ minHeight : height_ideal+'px' });
			$('page_content').setStyle({ minHeight : height_ideal-parseInt($('page_content').getStyle('padding-top'))+'px' });
		}
	}