var W3C = document.getElementById?true:false;
var NN=document.layers?true:false;
var IE=document.all?true:false;
var MOZ=((navigator.userAgent.toLowerCase().indexOf("mozilla")==0) && (navigator.userAgent.toLowerCase().charAt(8) >= 5) && (navigator.userAgent.toLowerCase().indexOf("compatible")<0));
var OP=window.opera;
var menu_num=1;
var menu_on_id=0;
var timeout_menu=0;

function over(s,c)
{
  s.style.backgroundColor=c;
}

function showMenu(menuid)
{
  if (document.layers)
  {
    for (i=1;i<menu_num+1;i++) if (i!=menu_on_id) document.layers["me"+i].visibility="hidden";
    document.layers["me"+menuid].visibility="visible";
  }
  else if (MOZ)
  {
  	for (i=1;i<menu_num+1;i++) document.getElementById("me1").style.visibility="hidden";
  	document.getElementById("me1").style.visibility="visible"
  }
  else
  {
    for (i=1;i<menu_num+1;i++) if (i!=menu_on_id) eval("document.all.me"+i+".style.visibility = \"hidden\"");
    eval("document.all.me"+menuid+".style.visibility = \"visible\"");
  }
  window.clearTimeout(timeout_menu);
}

function hideMenus()
{
  if (document.layers)
  {
    for (i=1;i<menu_num+1;i++) document.layers["me"+i].visibility="hidden";
  }
  else if (MOZ)
  {
    for (i=1;i<menu_num+1;i++) document.getElementById("me1").style.visibility="hidden";
  }
  else
  {
    for (i=1;i<menu_num+1;i++) eval("document.all.me"+i+".style.visibility = \"hidden\"");
  }
}

function startTimedOutHideMenu()
{
  timeout_menu=window.setTimeout("hideMenus()",500);
}

function positionMenu()
{
	ww=(IE)?document.body.clientWidth:window.innerWidth;
	wh=(IE)?document.body.clientHeight:window.innerHeight;
	xoff=(ww>=688)?(ww/2-688/2)+86:86;

	yoff=((wh-20)/2)+23;

	if (NN)
	{
		document.layers["me1"].moveTo(xoff,yoff);
	}
	else if(IE)
	{
		document.all.me1.style.pixelLeft=xoff;
		document.all.me1.style.pixelTop=yoff;
	}
	else if(MOZ)
	{
		document.getElementById("me1").style.left=xoff;
		document.getElementById("me1").style.top=yoff;
	}
}

function rp(pn,w,h,tit)
{
	nw=w;
	nh=h;
	pp=window.open('','pp','toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=0,width='+nw+',height='+nh);
	pp.document.open();
	pp.document.write("<html><head><title>Artinex - ");
	pp.document.write(tit);
	pp.document.write("</title>");
	pp.document.write("</head><body bgcolor='#FFFFFF' leftmargin='0' topmargin='0' marginwidth='0' marginheight='0'>");
	pp.document.write("<a href='javascript:window.close();'><img src='");
	pp.document.write(pn);
	pp.document.write("' border='0' width='");
	pp.document.write(w);
	pp.document.write("' height='");
	pp.document.write(h);
	pp.document.write("'></a></body></html>");
	pp.document.close();
}

function resetSearchForm() {
	document.forms.sf.n.value='';
	document.forms.sf.m.value='';
	document.forms.sf.x.value='';
	document.forms.sf.w.value='';
	document.forms.sf.h.value='';
	document.forms.sf.t.selectedIndex=0;
	document.forms.sf.g.selectedIndex=0;
	document.forms.sf.i.selectedIndex=0;					
}
