How can i show the overflow:hidden content using javascript or jquery

[razna]

I have a div content that has CSS:\[code\]height:700; overflow:hidden;\[/code\]What i want to do is i want to create a button that says: expand so once expand is clicked i want the css for that div to change from:\[code\]overflow:hidden\[/code\] TO \[code\]overflow:visible\[/code\]so know the div will expand to the height spcified in the css and it would be great if the expand button turns into collapse and does the vise versa when clicked