function showMenuPrice(select, serv){
	
	var file = "sub/price_ajax.php?ajax&"+"changeContent="+select;
	var blockNameId = "priceContent";
	
	var object = document.getElementById(blockNameId+select);
	serv = serv + 1;
	
	for (i=0;i<serv;i++){
		document.getElementById("menuPrice"+i).className = 'line';
	}
	document.getElementById("menuPrice"+select).className = 'selected';
	
	for (i=0;i<serv;i++){
		document.getElementById("linkPrice"+i).className = '';
	}
	document.getElementById("linkPrice"+select).className = 'link';
	
		if (object.innerHTML == ''){
			var xhr_object = null;
			if(window.XMLHttpRequest) // Firefox
					xhr_object = new XMLHttpRequest();
			else if(window.ActiveXObject) // Internet Explorer
					xhr_object = new ActiveXObject("Microsoft.XMLHTTP");
			else { // XMLHttpRequest non supporté par le navigateur
					alert("Problem of navigator, contact SUPPORT");
			}
				
			xhr_object.open("GET", file, true);
	
			xhr_object.onreadystatechange = function(){
				if ( xhr_object.readyState == 4 ){
					for(i=0;i<serv;i++){
						document.getElementById(blockNameId+i).style.display='none';
					}
					object.innerHTML = xhr_object.responseText;
					object.style.display = 'block';
					   
				}
			}
	
			xhr_object.send(null);
		
		} else {
			for(i=0;i<serv;i++){
				document.getElementById(blockNameId+i).style.display = 'none';
			}
			object.style.display = 'block';
		}
		return false;
}