So this is really straight forward but I'm still fairly new to JavaScript and just found JSFiddle. I'm trying to find the element with the getElementById()
to disable and enable a button. What am I missing?
<form name="frm" >
<div id="chkObj">
<input type="checkbox" name="setChkBx" onclick="basicList.modifyAndEnableButton(this)"></input>
</div>
<div id="Hello">
<input type="button" name="btn" value="Hello"></input>
</div>
This is a list that I am using to add checkboxes because there is going to be more than one:
var basicList = {
'items': {},
'modifyAndEnableButton': function(obj1) {
var element = document.getElementsByName("btn");
if (obj1.checked == true && element.getAttribute('disabled') == false) {
element.getAttribute('disabled') = true;
this.addRecord(obj2);
} else if (element.getAttribute('disabled') == true) {
if (hasItems == false) {
element.getAttribute('disabled') = false;
}
}
}
};
http://jsfiddle.net/Arandolph0/E9zvc/3/
Thanks in advance for your help.
All browsers support this (see example here):
mySelectedElement.onclick = function(e){
//your handler here
}
However, sometimes you want to add a handler (and not change the same one), and more generally when available you should use addEventListener
(needs shim for IE8-)
mySelectedElement.addEventListener("click",function(e){
//your handler here
},false);
Here is a working example:
var button = document.getElementById("myButton");
button.addEventListener("click",function(e){
button.disabled = "true";
},false);
And html:
<button id='myButton'>Hello</button>
Here are some useful resources:
addEventListener
on mdn