Secondary association of disease categories in simple medical projects

A very simple second-level linkage of a medical project. The main js Code is as follows: [javascript] <script type = "text/javascript">/** description: JS Disease Association * Time: 2/9/8 * Author: Macro Ying * Call: bar * var areaMap1 = new AreaMap1 ('propine1', 'city1 '); * areaMap1.province ('select a department ', 'select disease '); ** <select id = "province1" onchange = "areaMap1.city (this. value); "> </select> * <select id =" city1 "> </select> */var AreaMap1 = function (provinceid, cityid) {var cityid = cityid; var Provinceid = provinceid; var cityname; var provincename; var map = new Array (10); map [0] = new comefrom ("select Department", "select disease "); map [1] = new comefrom ("Internal Medicine ", "gout | cholecystitis | intestinal obstruction | leukemia | shock | anemia | allergic disease | hyperthyroidism | confluence | poisoning | heart disease | influenza | chronic bronchitis | radiation pneumonia | hyperthyroidism | heart valve disease | myocardial infarction | congenital heart disease | arrhythmia | high blood fat | Coronary Heart Disease | hypertension | pancreatitis | intestinal tuberculosis | emphysema | bronchitis | pneumonia | tuberculosis | asthma | cold "); map [2] = new comefrom ("surgery ", "enteritis | hydrocephalus | tetanus | burn | intestinal tuberculosis | rectal prolapse | anal wart | anal eczema | anal abscess | appendicitis | colon polyp | enteritis | anal fissure | anal fistula | hemorrhoids | constipation "); map [3] = new comefr Om ("male", "cryptorchitis | nocturnal emission | premature ejaculation | impotence | prostate hyperplasia | prostatitis"); map [4] = new comefrom ("obstetrics and gynecology ", "cervical cancer | cervical polyp | cervical erosion | breast hyperplasia | breast cancer | urethritis | accessory inflammation | cervicitis pelvic inflammatory disease | vaginitis | endometriosis"); map [5] = new comefrom ("pediatrics ", "Cough | Kawasaki disease | pediatric cold | infant diarrhea | pediatric asthma | pediatric ADHD | pediatric anorexia"); map [6] = new comefrom ("wuguanke ", "xuanyan | farsighted | stuttering | mouth inflammation | astigmatism | red eye disease | pharyngitis | vocal cords polyp | tonsillitis | laryngeal inflammation | rhinitis | nasal cyst | sinusitis | nasal polyps | otitis media | external ear inflammation | deafness | tinnitus | pulp inflammation | oral ulcer | dental caries | orthodontics | trachoma | oblique amblyopia | myopia | glaucoma | cataract "); map [7] = new comefrom ("dermatology and sexually transmitted diseases ", "sweating | hemorrhoids | acne | AIDS | urethritis | sualentomy | condyloma acuminata | herpes | non-flushed | male | gonorrhea | syphilis | body odor | Herpes Zoster | Mao Yanyan | hemorrhoids | color spots | ichthyosis | vitiligo | white hair | hair loss | urticaria | eczema | dermatitis | Psoriasis "); map [8] = new comefrom (" oncology ", "pituitary tumor | colorectal cancer | skin cancer | carcinoma | gallbladder cancer | esophageal cancer | testicular tumor | ureter tumor | bladder tumor | malignant lymphoma | Acute Leukemia | glioma | lung cancer | brain tumor | bone cancer | nasopharyngeal cancer | pancreatic cancer | thyroid cancer "); map [9] = new comefrom (" ", "Insomnia | paranoia | cerebral infarction | migraine | cerebral hemorrhage | epilepsy | Parkinson | neurasthenia | depression | schizophrenia | stroke | Alzheimer's Disease "); map [10] = new comefrom ("diseases ", "typhoid intestinal perforation | organic phosphorus oral drug poisoning | Bite Injury | altitude sickness | heatstroke | poisonous snake bite poisoning | sealed aphrodisiac poisoning | water loss | formic acid oral drug poisoning | high fever convulsions | acute abdomen | deprecated Chrysanthemum Ester oral medicine" ); function $ (id) {return document. getElementById (I D);} function comefrom (provinces, citys) {this. provinces = provinces; this. citys = citys;} return {province: function (provincename, cityname) {provincename = provincename; cityname = cityname; $ (provinceid ). options. length = 0; for (I = 0; I <map. length; I ++) {$ (provinceid ). options. add (new Option (map [I]. provinces, map [I]. provinces);} if (provincename! = ''& Cityname! = '') {$ (Provinceid ). value = provincename; this. city (provincename); $ (cityid ). value = cityname ;}, city: function (provincename) {$ (cityid ). options. length = 0; for (I = 0; I <map. length; I ++) {if (map [I]. provinces = provincename) {var citys = (map [I]. citys ). split ("|"); for (x = 0; x <citys. length; x ++) {$ (cityid ). options. add (new Option (citys [x], citys [x]) ;}}}</script> the second part of js Code. This is mainly the default value of the drop-down box, initially, "select a department", "select a disease", you can modify [javascript] <script> var areaMap1 = new AreaMap1 ('province1', 'city1 ') as needed '); areaMap1.province ('select a department ', 'select a disease'); // areaMap. province ('internal', 'gout '); </script> Part 3 html code [html] section: <select name = "keshi" id = "province1" onchange = "areaMap1.city (this. value); "> </select> disease: <select name =" jibing "id =" city1 "> </select>