Quick and easy way to hide and show items on a page with JavaScript

In this scenario, we want to hide/show salary questions IF the user is in certain states:


Step 1: The Form

Form Fields: I added an onClick event to the radio buttons which will kick off the SHOW/HIDE function: 

<input type="radio" value="0" onclick="javascript:showHideSalary();" id="legalStates0" name="legalStates"> NO

<input type="radio" value="1" onclick="javascript:showHideSalary();" id="legalStates1" name="legalStates"> YES





Step 2: The script

Add this script to the top of the page. Here I am saying if the users selects YES to the legal states question, hide the salary div.

<script>
function showHideSalary() {
    if (document.getElementById('legalStates0').checked){
        document.getElementById('salaryDiv').style.display = 'block';  display it
    }
    else document.getElementById('salaryDiv').style.display = 'none'; don't display it

}
</script>




Step 3: The DIV you want to hide. 


<div id="salaryDiv" style="display:none">

* add whatever you want to hide/display here *

</div>


Enjoy and let me know if you have any issues.