<html>
<body>
<form name="classic">
<select name="countries" size="1" onChange="updatecities(this.selectedIndex)" style="width: 150px">
<option selected>Select A City</option>
<option value="usa">USA</option>
<option value="canada">Canada</option>
<option value="uk">United Kingdom</option>
</select>
<select name="cities" size="1" style="width: 150px" onChange="alert(this.options[this.options.selectedIndex].value)">
</select>
</form>
<script type="text/javascript">
var countrieslist=document.classic.countries
var citieslist=document.classic.cities
var cities=new Array()
cities[0]=""
cities[1]=["Please Select","New York|newyorkvalue", "Los Angeles|loangelesvalue", "Chicago|chicagovalue", "Houston|houstonvalue", "Austin|austinvalue"]
cities[2]=["Please Select","Vancouver|vancouvervalue", "Tonronto|torontovalue", "Montreal|montrealvalue", "Calgary|calgaryvalue"]
cities[3]=["Please Select","London|londonvalue", "Glasgow|glasgowsvalue", "Manchester|manchestervalue", "Edinburgh|edinburghvalue", "Birmingham|birminghamvalue"]
function updatecities(selectedcitygroup){
citieslist.options.length=0
if (selectedcitygroup>0){
for (i=0; i<cities[selectedcitygroup].length; i++)
citieslist.options[citieslist.options.length]=new Option(cities[selectedcitygroup][i].split("|")[0], cities[selectedcitygroup][i].split("|")[1])
}
}
</script>
</body>
</html>
<body>
<form name="classic">
<select name="countries" size="1" onChange="updatecities(this.selectedIndex)" style="width: 150px">
<option selected>Select A City</option>
<option value="usa">USA</option>
<option value="canada">Canada</option>
<option value="uk">United Kingdom</option>
</select>
<select name="cities" size="1" style="width: 150px" onChange="alert(this.options[this.options.selectedIndex].value)">
</select>
</form>
<script type="text/javascript">
var countrieslist=document.classic.countries
var citieslist=document.classic.cities
var cities=new Array()
cities[0]=""
cities[1]=["Please Select","New York|newyorkvalue", "Los Angeles|loangelesvalue", "Chicago|chicagovalue", "Houston|houstonvalue", "Austin|austinvalue"]
cities[2]=["Please Select","Vancouver|vancouvervalue", "Tonronto|torontovalue", "Montreal|montrealvalue", "Calgary|calgaryvalue"]
cities[3]=["Please Select","London|londonvalue", "Glasgow|glasgowsvalue", "Manchester|manchestervalue", "Edinburgh|edinburghvalue", "Birmingham|birminghamvalue"]
function updatecities(selectedcitygroup){
citieslist.options.length=0
if (selectedcitygroup>0){
for (i=0; i<cities[selectedcitygroup].length; i++)
citieslist.options[citieslist.options.length]=new Option(cities[selectedcitygroup][i].split("|")[0], cities[selectedcitygroup][i].split("|")[1])
}
}
</script>
</body>
</html>
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