I'm using JavaScript onChange
, MySQL and PHP to display a Branch address from a list of towns which is populated from a list of counties.
It works fine in all browsers except IE (Any Version). In IE 开发者_Python百科all I get is a blank select option.
The Javascript
function getCounty(strURL) {
if (strURL==="") {
document.getElementById("branch").innerHTML="";
return;
}
if (window.XMLHttpRequest) { // code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp=new XMLHttpRequest();
}
else { // code for IE6, IE5
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange=function() {
if (xmlhttp.readyState===4 && xmlhttp.status===200) {
document.getElementById("branch").innerHTML=xmlhttp.responseText;
//alert(document.getElementById("branch").innerHTML=xmlhttp.responseText);
}
};
xmlhttp.open("GET",strURL,true);
xmlhttp.send(null);
}
function getBrach(strURL) {
if (strURL==="") {
document.getElementById("branch-addr").innerHTML="";
return;
}
if (window.XMLHttpRequest) { // code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp=new XMLHttpRequest();
}
else { // code for IE6, IE5
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange=function() {
if (xmlhttp.readyState===4 && xmlhttp.status===200) {
document.getElementById("branch-addr").innerHTML=xmlhttp.responseText;
}
};
xmlhttp.open("GET",strURL,true);
xmlhttp.send(null);
}
The Forms
<form method="post" id="addr-finder" action="">
<div class="county">
<label>Choose County</label>
<select name="county" id="county" onChange="getCounty('inc/findcity.php?c='+this.value)">
<option value="Select County">Select County</option>
<?php
while($row = $result->fetch_object()) {
echo '<option value="'.$row->address_5.'">'.$row->address_5.'</option>';
}
?>
</select>
</div>
<div class="branch">
<label>Choose Branch</label>
<select name="branch" id="branch" onChange="getBrach('inc/findbranch.php?t='+this.value)">
<option>--</option>
</select>
</div>
</form>
The PHP
<?php
include("cfg.php");
include("functions.php");
$county = $_REQUEST['c'];
$result2 = get_town($county);
?>
<option>Select Town</option>
<?php
while($row2 = $result2->fetch_object()) {
?>
<option value="<?php echo $row2->address_4 ; ?>"><?php echo $row2->address_4; ?></option>
<?php
}
?>
I did it the quick and dirty way.
using onclick
instead.
You could even do both, I do that a few places for making some mobile browsers work.
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