expandCollapse() code from Scripoting News

expandCollapse.js

function expandCollapse(id){
    var imgId = 'img_'+ id;
    if(document.getElementById(id).className == 'hide'){
        document.getElementById(id).className='show';
        // This will allow the window to scroll to the expanded text
        // 
        window.location.href = "#"+id;
        document.getElementById(imgId).src='http://scripting.com/mktree/minus.gif';		
    }
    else{
        document.getElementById(id).className='hide';
        document.getElementById(imgId).src='http://scripting.com/mktree/plus.gif';
    }
}