function show(vendor)
{
    for(i=0; (a = document.getElementsByTagName("div")[i]); i++) 
    {
        var attribute = true;
        try
        {
            attribute = a.hasAttribute("id");
        }
        catch(err)
        {}
        
         if(attribute)
         {
             if(a.getAttribute("id").indexOf("-description") != -1 || a.getAttribute("id").indexOf("-contact") != -1)
             {
                a.style.display = "none";
             }
         }
    }
    
    var description = document.getElementById(vendor.toLowerCase() + "-description");
    if(description != null) description.style.display = "block";
    
    var contact = document.getElementById(vendor.toLowerCase() + "-contact")
    if(contact != null) contact.style.display = "block";
    
    var heading = document.getElementById("heading");
    if(heading != null) heading.innerHTML = "<span>" + vendor + "</span>";
}