showLayer = function(lid)

            {

                l = document.getElementById('layer'+lid);

                t = document.getElementById('pTab'+lid);

                for( i = 0; i < l.parentNode.childNodes.length; i++ )

                {

                    

                    if( l.parentNode.childNodes[i] != l && l.parentNode.childNodes[i].style)

                        l.parentNode.childNodes[i].style.display = 'none';

                }

                l.style.display = '';

                i = 1;

                for ( i =1; i < 6; i++ )

                    if( e = document.getElementById('pTab'+i) )

                        if( e != t ) e.className = 'pTab';

                t.className = 'pTab-a';

                    

            }