var _maxItems = 4
function ExpandCollapsePanel(navId)
{
    var dataRowId, img, linklbl;
    dataRowId = "tbl" + navId + "DataRow";
    linklbl = document.getElementById("a" + navId + "Expand");
    if(linklbl==null)
        return;
        
    var _rowId = _maxItems;
    var displayValue = 'none';

    if (linklbl.innerHTML == "Show more")
    {
        linklbl.innerHTML = "Hide";
        displayValue = ''
    }
    else
    {
        linklbl.innerHTML = "Show more";
        displayValue = 'none'
    }
    while (document.getElementById(dataRowId + _rowId)!=null)
    {
        document.getElementById(dataRowId + _rowId).style.display = displayValue;
        _rowId = (parseInt(_rowId) + 1);
    }
}

ExpandCollapsePanel("Kon");
ExpandCollapsePanel("Sty");
ExpandCollapsePanel("Aks");