function ExpandCollapseColours(ChildID, ControlID) {

    var objImage = document.getElementById(ControlID + '_ExpanderImage_' + ChildID);
    var objText = document.getElementById(ControlID + '_ExpandLinkText_' + ChildID);
    var objPanel = document.getElementById(ControlID + '_ColourList_' + ChildID);

    if (objImage) {

        if (objPanel.style.display == 'none') {
            // Show the panel //
            objImage.src = 'Images/DownArrow.png';
            objText.innerHTML = 'Hide available colours';
            objPanel.style.display = 'block';
        }
        else {
            //Hide the panel //
            objImage.src = 'Images/RightArrow.png';
            objText.innerHTML = 'Show available colours';
            objPanel.style.display = 'none';
        }

    }


}