Exapand/collapse Div's in html

Hi,
  How can I implement expand/collpase panels using div's. I don't want to install any active-x controls. I want to implement something like shown in the image. Please help me how can I do it.

Thank you
expand-collpase.png
SthokalaAsked:
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bartvdCommented:
Hide the div:

div.style.display = "none";

Expand the div:

div.style.display = "block";
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ProculopsisCommented:
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Atique AnsariCommented:
YOu can use jquery's slideToggle() function on div's click event.
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SthokalaAuthor Commented:
Thank you for your answers. The code given is for horizontal panels..but I want the code to the two vertical panels. my question here is how can I insert an image in between two panels. please let me know.

Thank you
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nap0leonCommented:
The panel layouts can be whatever you want.  In this example, they are named "left", "middle", and "right", but you can easily update the styles to make them "top", "middle", and "bottom" if you want...

All that is missing is that you place your image inside the div with id=middle (or set the image as middle's background) - whatever you prefer.

<script>
function toggleMiddle(){
	(document.getElementById('middle').style.display=='inline') ? document.getElementById('middle').style.display='none' : document.getElementById('middle').style.display='inline';
}
</script>
<style>
#left {border:1px solid black; height:300px; width:200px; float:left;}
#middle {border:1px solid black; height:300px; width:200px; float:left; display:none;}
#right {border:1px solid black; height:300px; width:200px; float:left;}
</style>
<div id="left">Left</div>
<div id="middle"></div>
<div id="right">Right</div>
<input type="button" onclick="toggleMiddle()">Toggle Middle DIV</input>

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