The drop-down list box of second-level linkage in Dreamweaver

// Obtain an object function getByid (id) {if (document. getElementById) {return document. getElementById (id);} else if (document. all) {return document. all [id];} else if (document. layers) {return document. layers [id];} else {return null ;}// run the function creatID (DivID) {var objs = getByid (DivID) in the box ). getElementsByTagName (''textarea ''); var inps = getByid (DivID ). getElementsByTagName (''input ''); var buts = getByid (DivID ). getElementsByTagName (''button ''); var labs = getByid (DivID ). getElementsByTagName (''label''); for (I = 0; I<Script language = "JavaScript"> <! -- Var g_selProvince; var g_selCity; var Provinces = new Array ("110000", "Beijing"), new Array ("120000", "Tianjin "), new Array ("130000", "Hebei province"), new Array ("140000", "Shanxi province"), new Array ("150000", "Inner Mongolia autonomous region "), new Array ("210000", "Liaoning province"), new Array ("220000", "Jilin province"), new Array ("230000", "Heilongjiang province "), new Array ("310000", "Shanghai"), new Array ("320000", "Jiangsu"), new Array ("330000", "Zhejiang "), new Array ("340000", "Anhui province"), new Array ("350000", "Fujian province"), new Array ("360000", "Jiangxi province "), new Array ("370000", "Shandong Province"), new Array ("410000", "Henan province"), new Array ("420000", "Hubei province "), new Array ("430000", "Hunan province"), new Array ("440000", "Guangdong province"), new Array ("450000", "Guangxi Zhuang autonomous region "), new Array ("460000", "Hainan province"), new Array ("500000", "Chongqing"), new Array ("510000", "Sichuan province "),