// change tabs
 function change_fin(arg){
 var obj_image = document.getElementById("tab_basket");
 if(arg==1) obj_image.src="images/tab-view-basket.gif";
 if(arg==2) obj_image.src="images/tab-ur-details.gif";
 if(arg==3) obj_image.src="images/tab-con-order.gif";
}