function onSelectChange(type, value){
			if ( type == 'land' ) {
				$.ajax({  
					type: "GET",  
					url: '/ajax/ajax.php',  
					data: "function=select_box&type="+type+"&land="+$("#categorie_land").val(),  
					success: function(msg){  
						$("#categorie_beurs").html( msg );
						$.ajax({  
							type: "GET",  
							url: '/ajax/ajax.php',  
							data: "function=select_box&type=beurs&land="+$("#categorie_land").val()+"&beurs="+$("#categorie_beurs").val(),  
							success: function(msg2){  
								$("#categorie_index").html( msg2 );
								$.ajax({  
									type: "GET",  
									url: '/ajax/ajax.php',  
									data: "function=select_box&type=index&land="+$("#categorie_land").val()+"&beurs="+$("#categorie_beurs").val()+"&index="+$("#categorie_index").val(),  
									success: function(msg3){  
										$("#productid").html( msg3 );
								    }
								});
						    }
						});
					}  
				});
			}else if ( type == 'beurs' ) {
				$.ajax({  
					type: "GET",  
					url: '/ajax/ajax.php',  
					data: "function=select_box&type="+type+"&land="+$("#categorie_land").val()+"&beurs="+$("#categorie_beurs").val(),  
					success: function(msg){  
						$("#categorie_index").html( msg );
						$.ajax({  
							type: "GET",  
							url: '/ajax/ajax.php',  
							data: "function=select_box&type=index&land="+$("#categorie_land").val()+"&beurs="+$("#categorie_beurs").val()+"&index="+$("#categorie_index").val(),  
							success: function(msg3){  
								$("#productid").html( msg3 );
						    }
						});
						
					}  
				});
			}else if ( type == 'index' ) {
				$.ajax({  
					type: "GET",  
					url: '/ajax/ajax.php',  
					data: "function=select_box&type="+type+"&land="+$("#categorie_land").val()+"&beurs="+$("#categorie_beurs").val()+"&index="+$("#categorie_index").val(),  
					success: function(msg){  
						$("#productid").html( msg );
					}  
				});
			}  
		}