// JavaScript Document
var dwin;
var fromLeft = (screen.width - 600)/2;
var fromTop = (screen.height - 400)/2;

function showLayer (layerName)
{
	document.layers[layerName].visibility = 'visible'
}

function hideLayer (layerName)
{
	document.layers[layerName].visibility = 'hidden'
}

function openDescription(prodId)
{
    var winURL = "showdes.php?prodid=" + prodId;
    //alert(navigator.appName);
    if (! dwin || dwin.closed)
    {
      dwin = window.open(winURL, "dwin", "scrollbars=yes, location=no, status=no, titlebar=no, toolbar=no, menubar=no, resizable=no, width=600, height=400, left=" + fromLeft + ", top=" + fromTop);
      dwin.focus();
    }
    else
    {
      dwin.close();
      dwin = window.open(winURL, "dwin1", "scrollbars=yes, location=no, status=no, titlebar=no, toolbar=no, menubar=no, resizable=no, width=600, height=400, left=" + fromLeft + ", top=" + fromTop);
      dwin.focus();
    }
}