function createPopup(url){
			var popupArea = document.createElement('div');
			popupArea.id = 'popupArea';
			//popupArea.style.height = height +'px';
			
			var popupWrapper = document.createElement('div');
			popupWrapper.id = 'popupWrapper';
			
			popupWrapper.appendChild(popupArea);
			//popupWrapper.style.height = height +60 +'px';
			
			
			var popupFilter = document.createElement('div');
			popupFilter.id = 'popupFilter';
			
			wrapperHeight = $('wrapper').getHeight();
			popupFilter.style.height = wrapperHeight +0 +'px';
			
			document.body.appendChild(popupFilter);
			document.body.appendChild(popupWrapper);
			
			//Chargement du contenu de la popup via Ajax
			new Ajax.Request(url, {
			  method: 'get',
			  onSuccess: function(transport) {
				$('popupArea').innerHTML = '<div id="closePopup" onclick="removePopup();"></div>';
				$('popupArea').insert(transport.responseText);
				$('popupArea').style.border = '1px solid #999';
				
				popupAreaHeight = $('popupArea').getHeight();
				
				if(popupAreaHeight > wrapperHeight){
					popupFilter.style.height = popupAreaHeight +100 +'px';
				}
			  }
			});
		}
		
		function removePopup(){
			document.body.removeChild(document.getElementById('popupFilter'));
			document.body.removeChild(document.getElementById('popupWrapper'));	
		}