// rolovers
var rollOvers = new Array();
    
function imgRollOver(src,width,height,id)
{
    var i = src.indexOf(".",src.length-5);
    var srcOver = src.substr(0,i) + "_over" + src.substr(i);

    var s = '<img src="' + src + '"'
        + ' align=absmiddle' 
        + ' border="0"' 
        + ' width="' + width + '"'
        + ' height="' + height + '"' 
        + ' onMouseOver="this.src=\'' + srcOver + '\'"'
        + ' onMouseOut="this.src=\'' + src + '\'"';

    if (id)
    {
        s+= ' id="' + id + '"';
    }

    s += '>';


    rollOvers[rollOvers.length] = new Image();
    rollOvers[rollOvers.length-1].src = srcOver;

    document.write(s);
}

function imgOverById(id,src)
{
    var img = document.getElementById(id);
    if (img)
    {
        img.src = src;
    }
}

function imgOutById(id,src)
{
    var img = document.getElementById(id);
    if (img)
    {
        img.src = src;
    }
}