I m new in javascript developpement i m trying to make e function which hide or show some text in a span after a specific mouse event and i want to pass the id of this span in my function this is my script which work with only a specific id which is "sp1" in this case but i want to pass the id in my function parametres
<script>function myOverFunction() {
document.getElementById("sp1").style.visibility = 'visible';}
function myOutFunction() {
document.getElementById("sp1").style.visibility = 'hidden';}
and this a part of my html code
<div id="lg1"onmouseover="myOverFunction()" onmouseout="myOutFunction()"></div>
<center>
<div>
<span id="sp1" style="visibility: hidden;" >Current Value :70 <br>Target :80 <br>
<div class="label label-blue">In progress 90%</div>
</span>
</div>
</center>
Passing a parameter to a function like that can be achieved by using either single or double quotes depending on what you've used to enclose the code in your html.
<div id="mydiv" onclick="myFunction('mydiv');"></div>
Doing this is not really the best way to do it though.
When "myFunction" is fired by the onclick event, by default an e (event) parameter is passed. This contains lots of information about the event that happened, including a reference to the object that fired it. So you can find the id of your element using it.
function myFunction(e) {
e = e || window.event;
alert(e.target.getAttribute("id"));
}
And your HTML would be...
<div id="myDiv" onclick="myFunction()"></div>
Edit:
Looking at your question a little further, you can combine this, and your two functions into one toggling function
function toggleVisibility(e) {
e = e || window.event;
if (e.target.style.visibility == "visible") {
e.target.style.visibility = "hidden";
} else {
e.target.style.visibility = "visible";
}
}
You can call the same function for onmouseover and onmouseout on any element providing the visibility property is not null (i think it defaults to visible? bit of a guess thouugh)
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