// JavaScript Document
	$(document).ready(function() {
	
				function updateBttns(pos,total){
					switch(pos){
						case 0:
							$('api_next_bttn').show();
							$('api_prev_bttn').hide();
							$('donate_buttone').hide();
							break;
						case total:
							$('api_next_bttn').hide();
							$('api_prev_bttn').show();
							$('donate_buttone').show();
							break;
						default:
							$('api_next_bttn').show();
							$('api_prev_bttn').show();
							$('donate_buttone').hide();
							break;
					}
				}
				
				function showPage(page){
					pages = $$('.dfpage');
					if(!(page<0)||!(page>=pages.length)){
						for(var i=0;i<pages.length;i++){
							if(i!=page){
								$(pages[i]).hide();
							}
						}
						$(pages[page]).show();
						updateBttns(page,pages.length-1);
						currentPage=page;
					}
				}
				
				function checkPage(page){
					
				}
				
				function nextPage(){
					currentPage++;
					showPage(currentPage);
				}
				function prevPage(){
					currentPage--;
					showPage(currentPage);
				}
				
				var currentPage = 0;
				$('donate_form_body').hide();
				
				Event.observe(window,'load',function(){
					Event.observe('api_next_bttn','click',function(event){
						nextPage();
						Event.stop(event)
					});
					Event.observe('api_prev_bttn','click',function(event){
						prevPage();
						Event.stop(event);
					});
					Event.observe('level_other','click',function(event){
						$('other_amount').focus();
					});
					Event.observe('other_amount','change',function(event){
						$('level_other').click();
					});
					showPage(currentPage);
					$('donate_form_body').show();
				});
				});