Hello Guys,
I am developing a small form in wml. Initially I developed that is plain HTML. Please find below the form and the js I have used. Guys do help me out.
The HTML code
<!doctype html public "-//w3c//dtd html 3.2//en">
<html>
<head>
<title>(Type a title for your page here)</title>
<script language="javascript" src="list.js"></script>
</head>
<body bgcolor="#ffffff" text="#000000" link="#0000ff" vlink="#800080" alink="#ff0000">
<FORM name="drop_list" action="yourpage.php" method="POST" >
<SELECT NAME="Category" onChange="SelectSubCat();" >
<Option value="">Category</option>
<option value="Fruits">Fruits</option>
<option value="Games">Games</option>
<option value="Scripts">Scripts</option>
</SELECT>
<SELECT id="SubCat" NAME="SubCat">
<Option value="">SubCat</option>
</SELECT>
</form>
</body>
</html>
The JS file goes here:
function SelectSubCat(){
// ON selection of category this function will work
removeAllOptions(document.drop_list.SubCat);
addOption(document.drop_list.SubCat, "", "SubCat", "");
if(document.drop_list.Category.value == 'Fruits'){
addOption(document.drop_list.SubCat,"Mango", "Mango");
addOption(document.drop_list.SubCat,"Banana", "Banana");
addOption(document.drop_list.SubCat,"Orange", "Orange");
}
if(document.drop_list.Category.value == 'Games'){
addOption(document.drop_list.SubCat,"Cricket", "Cricket");
addOption(document.drop_list.SubCat,"Football", "Football");
addOption(document.drop_list.SubCat,"Polo", "Polo", "");
}
if(document.drop_list.Category.value == 'Scripts'){
addOption(document.drop_list.SubCat,"PHP", "PHP");
addOption(document.drop_list.SubCat,"ASP", "ASP");
addOption(document.drop_list.SubCat,"Perl", "Perl");
}
}
//////////////////
function removeAllOptions(selectbox)
{
var i;
for(i=selectbox.options.length-1;i>=0;i--)
{
selectbox.remove(i);
}
}
function addOption(selectbox, value, text )
{
var optn = document.createElement("OPTION");
optn.text = text;
optn.value = value;
selectbox.options.add(optn);
}
The WML code
<?xml version="1.0"?>
<!DOCTYPE wml PUBLIC "-//WAPFORUM//DTD WML 1.3//EN" "http://www.wapforum.org/DTD/wml13.dtd">
<wml>
<card id="card1" title="WMLScript Tutorial">
<p>
<select name="city">
<Option value="">Category</option>
<option value="Fruits">
<onevent type="onpick">
<go href="list.wmls#SelectSubCat()"/>
</onevent>
Fruits</option>
</select>
<select id="subcat" name="subcat">
<Option value="">SubCat</option>
</select>
</p>
</card>
</wml>
The WMLS/script code
extern function SelectSubCat(){
removeAllOptions(document.drop_list.SubCat);
addOption(document.drop_list.SubCat, "", "SubCat", "");
if(document.drop_list.Category.value == 'Fruits'){
addOption(document.drop_list.SubCat,"Mango", "Mango");
addOption(document.drop_list.SubCat,"Banana", "Banana");
addOption(document.drop_list.SubCat,"Orange", "Orange");
}
}
extern function removeAllOptions(selectbox)
{
var i;
for(i=selectbox.options.length-1;i>=0;i--)
{
//selectbox.options.remove(i);
selectbox.remove(i);
}
}
extern function addOption(selectbox, value, text )
{
var optn = document.createElement("OPTION");
optn.text = text;
optn.value = value;
selectbox.options.add(optn);
}
