I like to design a webpage using jsp.it has two comnbo boxes ,the information in the second box should vary accordingly to which i select inthe first. for example take the first as states , when i select one from it the corresponding cities of that bstate should load in the second combo box.please tell me how to do it

jacintha
Profile Answers by jacintha Questions by jacintha
Aug 6th, 2006
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Jayesh

Oct 2nd, 2006

Hello,
For that u don't need to use the jsp script. U can manage it by Javascript.
Make the associate array of state and city in havascript.
<script>
city_arr = new Array();
city_arr['State_code1']=new Array();
city_arr['State_code1']=[['City name 1'],['City name2'], ['City name2']];
city_arr['State_code2']=new Array();
city_arr['State_code2']=[['City name 11'],['City name22'], ['City name23']];
function displayCityByState(stateCode){
      if(city_arr[stateCode]){
             for(i=0, n=city_arr[stateCode].length; i<n ; i++){
                     alert(city_arr[stateCode][i]);
             }
     }
}
//eg. To call function when u change the value of dropdown (State)
displayCityByState('State_code1');
</script>
So u've to store javascript variable and their values through your jsp script in browser.