个人收集的javascript一些特效

<form name="regform" method="POST" action="regform.jsp" onSubmit="return check();" enctype="multipart/form-data"> <script language="javascript"> function update_province( CatID1, subTypeForm ){ subTypeForm.length=0; switch(CatID1){ case "-1": subTypeForm.options[0]=new Option("--------","-1"); subTypeForm.options[0].selected=true;break; case "0"://中国 subTypeForm.options[0]=new Option("广东","0"); subTypeForm.options[1]=new Option("广西","1"); subTypeForm.options[2]=new Option("北京","2"); subTypeForm.options[3]=new Option("海南","3"); subTypeForm.options[4]=new Option("福建","4"); subTypeForm.options[5]=new Option("天津","5"); subTypeForm.options[6]=new Option("湖南","6"); subTypeForm.options[7]=new Option("湖北","7"); subTypeForm.options[8]=new Option("河南","8"); subTypeForm.options[9]=new Option("河北","9"); subTypeForm.options[10]=new Option("山东","10"); subTypeForm.options[11]=new Option("山西","11"); subTypeForm.options[12]=new Option("黑龙江","12"); subTypeForm.options[13]=new Option("辽宁","13"); subTypeForm.options[14]=new Option("上海","14"); subTypeForm.options[15]=new Option("甘肃","15"); subTypeForm.options[16]=new Option("青海","16"); subTypeForm.options[17]=new Option("新疆","17"); subTypeForm.options[18]=new Option("西藏","18"); subTypeForm.options[19]=new Option("宁夏","19"); subTypeForm.options[20]=new Option("四川","20"); subTypeForm.options[21]=new Option("云南","21"); subTypeForm.options[22]=new Option("吉林","22"); subTypeForm.options[23]=new Option("内蒙古","23"); subTypeForm.options[24]=new Option("陕西","24"); subTypeForm.options[25]=new Option("安徽","25"); subTypeForm.options[26]=new Option("贵州","26"); subTypeForm.options[27]=new Option("江苏","27"); subTypeForm.options[28]=new Option("重庆","28"); subTypeForm.options[29]=new Option("浙江","29"); subTypeForm.options[30]=new Option("江西","30"); subTypeForm.options[31]=new Option("国外","31"); subTypeForm.options[32]=new Option("台湾","32"); subTypeForm.options[33]=new Option("香港","33"); subTypeForm.options[34]=new Option("澳门","34"); subTypeForm.options[0].selected=true; break; } return -1; } function update_city( CatID1, CatID2, subTypeForm ){ subTypeForm.length=0; switch(CatID1){ case "-1": subTypeForm.options[0]=new Option("--------","-1"); subTypeForm.options[0].selected=true;break; case "0"://中国 switch ( CatID2 ){ case "5"://广东 subTypeForm.options[0]=new Option("广州","0"); subTypeForm.options[1]=new Option("深圳","1"); subTypeForm.options[2]=new Option("珠海","2"); subTypeForm.options[3]=new Option("韶关","3"); subTypeForm.options[4]=new Option("潮州","4"); subTypeForm.options[5]=new Option("汕头","5"); subTypeForm.options[6]=new Option("肇庆","6"); subTypeForm.options[7]=new Option("湛江","7"); subTypeForm.options[8]=new Option("佛山","8"); subTypeForm.options[9]=new Option("新会","9"); subTypeForm.options[10]=new Option("河源","10"); subTypeForm.options[11]=new Option("潮阳","11"); subTypeForm.options[12]=new Option("揭阳","12"); subTypeForm.options[13]=new Option("南海","13"); subTypeForm.options[14]=new Option("其它","14"); subTypeForm.options[0].selected=true; break; case "6"://广西 subTypeForm.options[0]=new Option("南宁","0"); subTypeForm.options[1]=new Option("柳州","1"); subTypeForm.options[2]=new Option("桂林","2"); subTypeForm.options[3]=new Option("北海","3"); subTypeForm.options[4]=new Option("合山","4"); subTypeForm.options[5]=new Option("凭祥","5"); subTypeForm.options[6]=new Option("梧州","6"); subTypeForm.options[7]=new Option("玉林","7"); subTypeForm.options[8]=new Option("其它","8"); subTypeForm.options[0].selected=true; break; case "2"://北京 subTypeForm.options[0]=new Option("北京","0"); subTypeForm.options[0].selected=true; break; case "8"://海南 subTypeForm.options[0]=new Option("海口","0"); subTypeForm.options[1]=new Option("三亚","1"); subTypeForm.options[2]=new Option("琼海","2"); subTypeForm.options[3]=new Option("儋州","3"); subTypeForm.options[4]=new Option("通什","4"); subTypeForm.options[5]=new Option("其它","5"); subTypeForm.options[0].selected=true; break; case "3"://福建 subTypeForm.options[0]=new Option("福州","0"); subTypeForm.options[1]=new Option("厦门","1"); subTypeForm.options[2]=new Option("泉州","2"); subTypeForm.options[3]=new Option("漳州","3"); subTypeForm.options[4]=new Option("南平","4"); subTypeForm.options[5]=new Option("三明","5"); subTypeForm.options[6]=new Option("莆田","6"); subTypeForm.options[7]=new Option("龙岩","7"); subTypeForm.options[8]=new Option("晋江","8"); subTypeForm.options[9]=new Option("武夷山","9"); subTypeForm.options[10]=new Option("永安","10"); subTypeForm.options[11]=new Option("石狮","11"); subTypeForm.options[12]=new Option("其它","12"); subTypeForm.options[0].selected=true; break; case "26"://天津 subTypeForm.options[0]=new Option("天津","0"); subTypeForm.options[0].selected=true; break; case "13"://湖南 subTypeForm.options[0]=new Option("长沙","0"); subTypeForm.options[1]=new Option("衡阳","1"); subTypeForm.options[2]=new Option("邵阳","2"); subTypeForm.options[3]=new Option("湘潭","3"); subTypeForm.options[4]=new Option("岳阳","4"); subTypeForm.options[5]=new Option("株洲","5"); subTypeForm.options[6]=new Option("常德","6"); subTypeForm.options[7]=new Option("津市","7"); subTypeForm.options[8]=new Option("耒阳","8"); subTypeForm.options[9]=new Option("醴陵","9"); subTypeForm.options[10]=new Option("益阳","10"); subTypeForm.options[11]=new Option("张家界","11"); subTypeForm.options[12]=new Option("其它","12"); subTypeForm.options[0].selected=true; break; case "12"://湖北 subTypeForm.options[0]=new Option("武汉","0"); subTypeForm.options[1]=new Option("黄石","1"); subTypeForm.options[2]=new Option("荆沙","2"); subTypeForm.options[3]=new Option("十堰","3"); subTypeForm.options[4]=new Option("襄樊","4"); subTypeForm.options[5]=new Option("宜昌","5"); subTypeForm.options[6]=new Option("鄂州","6"); subTypeForm.options[7]=new Option("黄冈","7"); subTypeForm.options[8]=new Option("随州","8"); subTypeForm.options[9]=new Option("荆门","9"); subTypeForm.options[10]=new Option("老河口","10"); subTypeForm.options[11]=new Option("其它","11"); subTypeForm.options[0].selected=true; break; case "10"://河南 subTypeForm.options[0]=new Option("郑州","0"); subTypeForm.options[1]=new Option("焦作","1"); subTypeForm.options[2]=new Option("商丘","2"); subTypeForm.options[3]=new Option("洛阳","3"); subTypeForm.options[4]=new Option("平顶山","4"); subTypeForm.options[5]=new Option("鹤壁","5"); subTypeForm.options[6]=new Option("新乡","6"); subTypeForm.options[7]=new Option("安阳","7"); subTypeForm.options[8]=new Option("开封","8"); subTypeForm.options[9]=new Option("漯河","9"); subTypeForm.options[10]=new Option("南阳","10"); subTypeForm.options[11]=new Option("南阳","11"); subTypeForm.options[12]=new Option("濮阳","12"); subTypeForm.options[13]=new Option("三门峡","13"); subTypeForm.options[14]=new Option("信阳","14"); subTypeForm.options[15]=new Option("许昌","15"); subTypeForm.options[16]=new Option("驻马店","16"); subTypeForm.options[17]=new Option("周口","17"); subTypeForm.options[18]=new Option("其他","18"); subTypeForm.options[0].selected=true; break; case "9"://河北 subTypeForm.options[0]=new Option("石家庄","0"); subTypeForm.options[1]=new Option("唐山","1"); subTypeForm.options[2]=new Option("邯郸","2"); subTypeForm.o