So I have this simple AJAX example what I want to modify, so when I change the year in the selectbox, I want it to take effect on multiple divs, not only the one with the ID. Any sollution? I was thinking of getelementsbyclassname, but it doesnt show anything.
<html>
<head>
<script>
function showUser(str) {
if (str=="") {
document.getElementById("txtHint").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("txtHint").innerHTML=xmlhttp.responseText;
}
}
xmlhttp.open("GET","proba.php?q="+str,true);
xmlhttp.send();
}
</script>
</head>
<body>
<form>
<select name="users" onChange="showUser(this.value)">
<option value="">Choose year:</option>
<option value="2013">2013</option>
<option value="2014">2014</option>
</select>
</form>
<br>
<div id="txtHint"><b> - </b></div>
<p> </p>
</body>
</html>
getElementsByClassName Will work just fine, you just have to iterate the returned items:
<html>
<head>
<script>
function showUser(str) {
if (str=="") {
setContent("");
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) {
setContent(xmlhttp.responseText);
}
}
xmlhttp.open("GET","proba.php?q="+str,true);
xmlhttp.send();
}
function setContent(content){
var divs = document.getElementsByClassName('txtHint'); //fixed syntax error here
var i = divs.length;
while(i--) {
divs[i].innerHTML = content;
}
}
</script>
</head>
<body>
<form>
<select name="users" onChange="showUser(this.value)">
<option value="">Choose year:</option>
<option value="2013">2013</option>
<option value="2014">2014</option>
</select>
</form>
<br>
<div class="txtHint"><b> - </b></div>
<div class="txtHint"><b> - </b></div>
<div class="txtHint"><b> - </b></div>
<p> </p>
</body>
</html>