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Thread: 3 listbox ajax dropdown with reload(this.form)

  1. #1
    Join Date
    Jun 2009
    Posts
    20

    3 listbox ajax dropdown with reload(this.form)

    what i am trying to do is have 3 listbox that reload as you click them

    here is the js

    Code:
    function reload(form)
    {
    var val=form.state.options[form.state.options.selectedIndex].value;
    self.location='homes.php?state=' + val;
    }
    function reload1(form)
    {
    var val=form.state.options[form.state.options.selectedIndex].value;
    var val2=form.county.options[form.county.options.selectedIndex].value;
    self.location='homes.php?state=' + val + '&county=' + val2;
    }
    function reload2(form)
    {
    var val=form.state.options[form.statet.options.selectedIndex].value;
    var val2=form.county.options[form.county.options.selectedIndex].value;
    var val3=form.city.options[form.city.options.selectedIndex].value;
    self.location='homes.php?state=' + val + '&county=' + val2 + '&city=' + val3;
    }
    here is the html
    PHP Code:
    <?
    include'admin/configs/configs.php';
    @
    $state=$_REQUEST['state'];
    @
    $county=$_REQUEST['county'];
    @
    $city=$_REQUEST['city'];

    $quer2=mysql_query("SELECT DISTINCT state,id FROM states"); 

    if(
    $state){
    $quer=mysql_query("SELECT DISTINCT * FROM county where state='$state'"); }

    $quer3=mysql_query("SELECT DISTINCT * FROM cities where county='$county'"); 

    echo 
    "<form method=post name=f1 action='homes.php?state=$state&county=$county'>";


    echo 
    "<select name='state' onchange=\"reload(this.form)\"><option value=''>Select one</option>";
    while(
    $mbfh2 mysql_fetch_array($quer2)) { 
    if(
    $mbfh2['state']==@$state){echo "<option selected value='$mbfh2[state]'>$mbfh2[state]</option>"."<BR>";}
    else{echo 
    "<option value='$mbfh2[state]'>$mbfh2[state]</option>";}
    }
    echo 
    "</select>";

    echo 
    "<select name='county' onchange=\"reload1(this.form)\"><option value=''>Select one</option>";
    while(
    $mbfh mysql_fetch_array($quer)) { 
    if(
    $mbfh['county']==@$county){echo "<option selected value='$mbfh[county]'>$mbfh[county]</option>"."<BR>";}
    else{echo 
    "<option value='$mbfh[county]'>$mbfh[county]</option>";}
    }
    echo 
    "</select>";

    echo 
    "<select name='city' onchange=\"reload2(this.form)\"><option value=''>Select one</option>";
    while(
    $mbfh3 mysql_fetch_array($quer3)) { 
    if(
    $mbfh3['city']==@$city){echo "<option selected value='$mbfh3[city]'>$mbfh3[city]</option>"."<BR>";}
    else{echo 
    "<option value='$mbfh3[city]'>$mbfh3[city]</option>";}
    }
    echo 
    "</select>";

    echo 
    "<input type=submit value=Submit>";
    echo 
    "</form>";

    ?>
    the first 2 buttons reload the last one does not reload
    i need the last one to reload please thankz

  2. #2
    Join Date
    Feb 2011
    Posts
    3
    i meant the first 2 dropdowns reload the last one does not reload
    i need the last one to reload please thankz

  3. #3
    Join Date
    Feb 2011
    Posts
    3
    nm i found what i did wrong had xtra t in state

    var val=form.state.options[form.statet.options.selectedIndex].value;

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