I'm very new to Javascript and this is my first time creating my own function. I'm trying to change the color of links based on whether or not the user clicks a button I've created. The code is as follows:
<p align="center">
<input type="button";
onclick="changelinks"
value = "Click this if you can't see the links!"/>
</p>
This is the code I have for my function.
<script type="text/javascript">
function changelinks(links) {
var element = document.getElementByClass("links");
element.onclick.color = "#00FF7F";
}
</script>
Do you have any suggestions to make my function work? How can I link my function to the button? Thanks in advance, I really appreciate it.
Among others, these are some major issues:
1.There is no getElementByClass
- there is getElementsByClassName
or getElementById
2. element.onclick.color = "#00FF7F";
is wrong.
3. type="button"; onclick="changelinks"
type="button"; onclick="changelinks"
should not have a ;
and changelinks
needs ()
Try this:
<script type="text/javascript">
function changelinks() {
var element = document.getElementById("links");
element.style.color = "#000";
}
</script>
<a href="#" id="links" style="color:#fff">Hello</a>
<p align="center">
<input type="button" onclick="changelinks()" value = "Click this if you can't see the links!"/>
</p>
This is a simple example that will do what you one for one link id="links"
. To do something similar with multiple elements of the same class, see this question and the javascript manual .
Also, note that this example uses pure javascript, but a cleaner and simpler solution could be had using JQuery - see Johannes N's answer for details.
This can be easily done using jQuery.
Html:
<p id="button">Button</p>
<a href="" class="links">link</a>
JavaScript:
$(function() {
$('#button').click(function() {
$('.links').css("color", "red");
});
});
Working example: http://jsfiddle.net/YS79d/
addClass and removeClass in jquery does the trick
HTML/CSS
<style>
.links {
color:#FF0000;
}
.links2 {
color:#0000FF;
}
</style>
<p id="button">Button</p>
<a href="" class="links">link</a>
Javascript
$('#button').toggle(function () {
$(".links").addClass("links2");
}, function () {
$(".links").removeClass("links2");
});
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