function httpRequest (srcElt, dstElt) {
			srcElt.addEvent('click', function(event) { 
				event.stop();
         		var req = new Request({  
				method: 'get',  
             	url: srcElt.get('href'), 
             	onComplete: function(response) { $('contenu').set('html',response) ; }  
	         	}).send();  
    	 	});  
		}
		
		function httpRequestPost (srcElt, dstElt) {
				var data = "";
							var elt = $$("#searchForm input").each(function (item, index) {
							data += item.getProperty("name") + "=" +item.getProperty("value")+"&";
							});

         		var req = new Request({  
					method: 'post',  
					data: data,
        	     	url: srcElt.getProperty('action'), 
            	 	onComplete: function(response) { $('contenu').set('html',response) ; }  
	         	}).send();  
				
		}