getElementById doesn't work

[johnb41]

I have a Dreamweaver Spry CollapsePanel which i want to open and close programatically via javascript.I can open the CollapsePanel with the ID hard coded in:CollapsiblePanel1.open(); // this works... but i need to do this programatically, and this doesn't work:var x = document.getElementById("CollapsiblePanel1");x.open(); // does not workIt's critical that i have to do it with a variable. Can anyone help?Thanks!John

[Ingolme]

Is this "CollapsiblePanel1" an HTML element or just Javascript?

[johnb41]

Is this "CollapsiblePanel1" an HTML element or just Javascript?

It's the ID of a DIV: <div id="CollapsiblePanel1"> <div class="CollapsiblePanelTab"></div> <div class="CollapsiblePanelContent"></div> </div> // all the magic behind this collapsepanel is done with an attached javascript file supplied by AdobeAs in the original post, if i use getElementById, and put the result into a variable, the "open" command does not work. But if i do the "open" command directly on the ID, then it does work!! What's going on?Thanks!John

[Ingolme]

I don't know anything about Dreamweaver's libraries, but most likely the open() method is attached to the variable and not the element.