var srcDefault = "App_Themes/Default/Images/Interiors/";
    
function Roll(obj)
{
    if(obj.src.indexOf("over") > -1)
    {
        obj.src = srcDefault + "off.gif";
    }
    else if(obj.src.indexOf("off") > -1)
    {
        obj.src = srcDefault + "over.gif";
    }
}

function ShowImage(img, tot, path)
{
    for(i = 1; i <= tot; i++)
    {
        eval("document.getElementById('PicLink" + i + "')").src = srcDefault + "off.gif";
    }
    
    eval("document.getElementById('PicLink" + img + "')").src = srcDefault + "on.gif";
    
    document.getElementById('ctl00_ContentPlaceHolder2_imgFirstImage').src = "Interiors/" + path;
}