3d商店系统！利用jsp和3d结合制作！

				
				
										List topCategories = new ArrayList();
						for (int i = 0; i < categories.size(); i++) {
							Category c = categories.get(i);
							if (c.getGrade() == 1) {
								topCategories.add(c);
							}
						}
						return topCategories;
					}
				
					private List getChilds(Category parent, List categories) {
						List childs = new ArrayList();
						for (int i = 0; i < categories.size(); i++) {
							Category c = categories.get(i);
							if (c.getPid() == parent.getId()) {
								childs.add(c);
							}
						}
						return childs;
					}
				
					private String getChildsStr(List childs) {
						StringBuffer buf = new StringBuffer();
						for (int i = 0; i < childs.size(); i++) {
							Category c = childs.get(i);
							buf.append(
									"")
									.append(c.getName()).append("").append("-");
						}
						return buf.toString();
					}%>
				
											List categories = CategoryService.getInstance()
							.getCategories();
					List topCategories = getTopCategories(categories);
				%>
				
				
					
						businessSell
					
				
					
						
				function changeDrop2() {
					if (document.form.Drop1.selectedIndex == 0) {
						document.form.Drop2.length = 1;
						document.form.Drop1.selectedIndex = 0
						document.form.Drop2.selectedIndex = 0
						document.form.Drop2.options[0].text = "No Top Category Selected";
						document.form.Drop2.options[0].value = "No Top Category Selected";
					}
				
					
					
						if (document.form.Drop1.options[document.form.Drop1.selectedIndex].value == ) {
														List childs = getChilds(top, categories);
							int i = 1;
							%>
							document.form.Drop2.length = ;
							document.form.Drop2.selectedIndex = 0
							document.form.Drop2.options[0].text = "Select Second Category";
							document.form.Drop2.options[0].value = "Select Second Category";
							
							
								document.form.Drop2.options[].text = "";
								document.form.Drop2.options[].value = "";
								
															i ++; 
							} 
							%>
							
							}
					
				
				}
				
				function goThere() {
				if (document.form.Drop1.selectedIndex == 0) {
					alert("Please Select a Product");
					} else {
					if (document.form.Drop2.selectedIndex == 0) {
						alert("Please Select a Model");
						} else {
						var list1 = document.form.Drop1;
						var list2 = document.form.Drop2;
						var theDIR = list1.options[list1.selectedIndex].value;
						var theProduct = document.form.Drop2.options[list2.selectedIndex].value;
						location.href = "http://www.YourLinkHere.com/" + theDIR + "/" + theProduct + ".htm";
						}
					}
				}
				
				
				
				
						
							
								
									
										Select A Top Category
									
																		for (Category top : topCategories) {
									%>
									
																		}
									%>
								
								
								
				
								
								
																	name="B1">