var browserName = navigator.appName;
		var browserVer = parseInt( navigator.appVersion );
		var version = "";

		if ( browserName == "Netscape" && browserVer >= 3 )
				version = "n3";
		else if ( browserName == "Netscape" && browserVer == 2 )
				version = "n2";
		else if 
				( browserName == "Microsoft Internet Explorer" && browserVer >= 4 ) version = "e4";

		else if ( browserName == "Microsoft Internet Explorer" && browserVer >= 2 ) version = "e2";
		else
                version = "other";

        if ( version == "n3" || version == "e4" ) {


				zgoraj_1on = new Image (); zgoraj_1on.src="images/zgoraj_1_on.gif";
				zgoraj_1off = new Image (); zgoraj_1off.src="images/zgoraj_1_off.gif";
				zgoraj_2on = new Image (); zgoraj_2on.src="images/zgoraj_2_on.gif";
				zgoraj_2off = new Image (); zgoraj_2off.src="images/zgoraj_2_off.gif";
				zgoraj_3on = new Image (); zgoraj_3on.src="images/zgoraj_3_on.gif";
				zgoraj_3off = new Image (); zgoraj_3off.src="images/zgoraj_3_off.gif";
				sion = new Image (); sion.src="../images/si_on.gif";
				sioff = new Image (); sioff.src="../images/si_off.gif";				
				enon = new Image (); enon.src="../images/en_on.gif";
				enoff = new Image (); enoff.src="../images/en_off.gif";		
				deon = new Image (); deon.src="../images/de_on.gif";
				deoff = new Image (); deoff.src="../images/de_off.gif";						
				zgoraj_6on = new Image (); zgoraj_6on.src="../images/home_on.gif";
				zgoraj_6off = new Image (); zgoraj_6off.src="../images/home_off.gif";

				levo_1on = new Image (); levo_1on.src="images/levo_1_on.gif";
				levo_1off = new Image (); levo_1off.src="images/levo_1_off.gif";
				levo_2on = new Image (); levo_2on.src="images/levo_2_on.gif";
				levo_2off = new Image (); levo_2off.src="images/levo_2_off.gif";
				levo_3on = new Image (); levo_3on.src="images/levo_3_on.gif";
				levo_3off = new Image (); levo_3off.src="images/levo_3_off.gif";
				levo_4on = new Image (); levo_4on.src="images/levo_4_on.gif";
				levo_4off = new Image (); levo_4off.src="images/levo_4_off.gif";
				levo_5on = new Image (); levo_5on.src="images/levo_5_on.gif";
				levo_5off = new Image (); levo_5off.src="images/levo_5_off.gif";
				levo_6on = new Image (); levo_6on.src="images/levo_6_on.gif";
				levo_6off = new Image (); levo_6off.src="images/levo_6_off.gif";
				levo_7on = new Image (); levo_7on.src="images/levo_7_on.gif";
				levo_7off = new Image (); levo_7off.src="images/levo_7_off.gif";
				levo_8on = new Image (); levo_8on.src="images/levo_8_on.gif";
				levo_8off = new Image (); levo_8off.src="images/levo_8_off.gif";
				levo_9on = new Image (); levo_9on.src="images/levo_9_on.gif";
				levo_9off = new Image (); levo_9off.src="images/levo_9_off.gif";
				levo_10on = new Image (); levo_10on.src="images/levo_10_on.gif";
				levo_10off = new Image (); levo_10off.src="images/levo_10_off.gif";

				header_3on = new Image (); header_3on.src="../images/header_3_on.gif";
				header_3off = new Image (); header_3off.src="../images/header_3_off.gif";
				header_4on = new Image (); header_4on.src="../images/header_4_on.gif";
				header_4off = new Image (); header_4off.src="../images/header_4_off.gif";

    }

function img_act(imgName) {
   if (document.images != null) {
      if ( version == "n3" || version == "e4") {
         imgOn = eval(imgName + "on.src");
         document [imgName].src = imgOn;
      }
   }
}

function img_inact(imgName) {
   if (document.images != null) {
      if ( version == "n3" || version == "e4") {
         imgOn = eval(imgName + "off.src");
         document [imgName].src = imgOn;
      }
   }
}


function formchecker_contact_si() {

if (document.contact_us.firstName.value=="")
{
alert("Prosimo vnesite svoje ime.")
return false
}

if (document.contact_us.message.value=="")
{
alert("Prosimo vnesite vaše sporočilo.")
return false
}

return true

}

function formchecker_contact_us() {

if (document.contact_us.firstName.value=="")
{
alert("Pleas insert your name.")
return false
}

if (document.contact_us.message.value=="")
{
alert("Pleas insert your message.")
return false
}

return true

}

function formchecker_contact_de() {

if (document.contact_us.firstName.value=="")
{
alert("Bitte eintragen Sie ihren Vornamen.") 
return false
}

if (document.contact_us.message.value=="")
{
alert("Bitte eintragen Sie ihre nachricht.")
return false
}

return true

}