function show(obj) {

    var nazwa = navigator.appName;

    if (nazwa=='Microsoft Internet Explorer')
    {
        if (document.getElementById(obj).style.display=='block')
        {       eval("document.getElementById('" + obj + "').style.display='none'");        }
        else
        {       eval("document.getElementById('" + obj + "').style.display='block'");      }
    }
    else
    {
	if (document.getElementById(obj).style.display=='table-row')
	{       eval("document.getElementById('" + obj + "').style.display='none'");        }
	else
        {       eval("document.getElementById('" + obj + "').style.display='table-row'");      }
    }
}