function incrementQty(fieldid)
    {
        var lbl = document.getElementById(fieldid);
        var val = parseInt(lbl.getAttribute("value")) + 1;
        lbl.setAttribute("value",val);
    }
    
    function decrementQty(fieldid)
    {
        var lbl = document.getElementById(fieldid);
        var val = parseInt(lbl.getAttribute("value")) - 1;
        if(val < 0)
            val = 0;
            
        lbl.setAttribute("value",val);
    }   
    
    function ShowHide(id, img)
    {       
        //show
        var src;
        if(document.getElementById(id) != null)
        {
            if(document.getElementById(id).style.display == 'none')
            {
                document.getElementById(id).style.display = '';
               
                src = document.getElementById(img).getAttribute("src").toUpperCase();
                src = src.replace("headerArrow.gif".toUpperCase(), "HeaderArrowExpanded.gif");
                document.getElementById(img).setAttribute("src",src);
            }
            else
            {
                document.getElementById(id).style.display = 'none';    
               
                src = document.getElementById(img).getAttribute("src").toUpperCase();
                src = src.replace("HeaderArrowExpanded.gif".toUpperCase(), "headerArrow.gif");
                document.getElementById(img).setAttribute("src",src);        
            }
        }
        
        //hide
        var HideID ;
        if(document.getElementById("hdLastDivClicked") != null)
        {
            HideID = document.getElementById("hdLastDivClicked").value;
            if(HideID != "")
            {                    
                if (HideID != id) //if they open and closed a catergory then HideID = ID  and so we don't want to do this
                    document.getElementById(HideID).style.display = 'none';  
            }
        }
        
        var ImgID ;
        if(document.getElementById("hdLastImgClicked") != null)
        {   
            ImgID = document.getElementById("hdLastImgClicked").value
            if(ImgID != "")
            {                      
                if (HideID != id) //if they open and closed a catergory then HideID = ID  and so we don't want to do this
                {       
                    src = document.getElementById(ImgID).getAttribute("src").toUpperCase();
                    src = src.replace("HeaderArrowExpanded.gif".toUpperCase(), "headerArrow.gif");
                    document.getElementById(ImgID).setAttribute("src",src);      
                }
            }
        }
        
        //remember
        document.getElementById("hdLastDivClicked").value = id;
        document.getElementById("hdLastImgClicked").value = img;
    }