First create an area.html, which is very simple to include a province's SELECT element and an interface element of a city:
area demo </ title> </ head> <body> <select = "province" size = 1 οnchange = "loading"> <option value = "city01.xml"> Jiangsu </ option> <option value = "city02.xml"> o Hunan </ option> <option value = "city03.xml"> Hubei </ option> </ select> <select id = "city" size = 1 > </ select> <xml id = "xmlobj"> </ xml> <script language = "javascript" type = "text / javascript"> var provobj = document.all ("province"); var cityobj = document.all ("city"); var xmlhttp = document.all ("xmlobj"); loadingCity (); / ** * Loading city data * / function loadCity () {cityobj.Options.Length = 0; var file = provobj.options [provobj.selected ".Value; xmlhttp.async = false; xmlhttp.load (file); var cities = xmlhttp.selectnodes (" cities / city "); var idx, name;</p>
<p>For (idx = 0; idx <cities.length; idx ) {name = cities [idx] .getattribute ("name"); cityobj.Options.Length ; cityobj.Options [Cityobj.Options.Length - 1]. Value = name; Cityobj.Options [Cityobj.Options.Length - 1] .Text = name;}} </ script> </ body> </ html></p>
<p>Then establish three provinces of urban data files, named City01.xml, City02.xml, city03.xml, respectively</p>
<p><? XML Version = "1.0" encoding = "GB2312"?> <cities province = "Jiangsu"> <city name = "Nanjing" /> </ cities></p>
<p><? XML Version = "1.0" encoding = "GB2312"?> <cities province = "Hunan"> <city name = "Changsha" /> </ cities> <? XML Version = "1.0" encoding = "gb2312"? > <Cities province = "Hubei"> <city name = "Wuhan" /> </ cities></p>
<p>Save, pass the IE6, theoretically, can run on the IE5 one browser.</p></div><div class="text-center mt-3 text-grey">
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