function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

agent = navigator.userAgent;
browserVer = 0;

browser = (((navigator.appName == "Netscape") && (parseInt(navigator.appVersion) >= 3 )) ||
  ((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) >= 4 )));

if (browser) {browserVer = 1}

if (browserVer == 1) {

	whatoff = new Image();
	whatoff.src = "images/n_what.gif";
	whaton = new Image();	
	whaton.src = "images/n_what_o.gif";
	
	pdrsoff = new Image();
	pdrsoff.src = "images/n_pdrs.gif";
	pdrson = new Image();	
	pdrson.src = "images/n_pdrs_o.gif";
	
	meetoff = new Image();
	meetoff.src = "images/n_meet.gif";
	meeton = new Image();	
	meeton.src = "images/n_meet_o.gif";
	
	gashoff = new Image();
	gashoff.src = "images/n_leaky.gif";
	gashon = new Image();	
	gashon.src = "images/n_leaky_o.gif";
	
	mackeyoff = new Image();
	mackeyoff.src = "images/n_mackey.gif";
	mackeyon = new Image();	
	mackeyon.src = "images/n_mackey_o.gif";
	
	contactoff = new Image();
	contactoff.src = "images/n_contact.gif";
	contacton = new Image();	
	contacton.src = "images/n_contact_o.gif";
}

function img_act(imgName) {
	if (browserVer == 1) {
		imgOn = eval(imgName + "on.src");
	  	document [imgName].src = imgOn;
	}
}

function img_inact(imgName) {
	if (browserVer == 1) {
		imgOff = eval(imgName + "off.src");
		document [imgName].src = imgOff;
  	}
}

function otevpart() {
 w = screen.width;
 h = screen.height;
 stred1 = (w/2)-200;
 stred2 = (h/2)-200;
  window.open('partners.html','partners','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=no,left='+stred1+',top='+stred2+',width=435,height=400');
}