var loadpage = 0;

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

if (browser) {
	x=0;
	nav1on = new Image();
	nav1on.src = "_media/nav/plasticon.gif";
	nav1off = new Image();
	nav1off.src = "_media/nav/plastic.gif";
	nav1press = new Image();
	nav1press.src = "_media/nav/plasticpress.gif";
	nav1texton = new Image();
	nav1texton.src = "_media/nav/plastictext.gif";
	nav1textoff = new Image();
	nav1textoff.src = "_media/nav/car.gif";
	nav2on = new Image();
	nav2on.src = "_media/nav/armexon.gif";
	nav2off = new Image();
	nav2off.src = "_media/nav/armex.gif";
	nav2press = new Image();
	nav2press.src = "_media/nav/armexpress.gif";
	nav2texton = new Image();
	nav2texton.src = "_media/nav/armextext.gif";
  	nav2textoff = new Image();
	nav2textoff.src = "_media/nav/car.gif";
	nav4on = new Image();
	nav4on.src = "_media/nav/contacton.gif";
	nav4off = new Image();
	nav4off.src = "_media/nav/contact.gif";
	nav4press = new Image();
	nav4press.src = "_media/nav/contactpress.gif";
	nav4texton = new Image();
	nav4texton.src = "_media/nav/contacttext.gif";
	nav4textoff = new Image();
	nav4textoff.src = "_media/nav/car.gif";
	nav5on = new Image();
	nav5on.src = "_media/nav/car.gif";
	nav5off = new Image();
	nav5off.src = "_media/nav/car.gif";
	nav5texton = new Image();
	nav5texton.src = "_media/nav/car.gif";
	nav5textoff = new Image();
	nav5textoff.src = "_media/nav/car.gif";
}


function img_act(imgName) {
	if (browser && loadpage == 1)   {
		imgOn = eval(imgName + "on.src");
		document [imgName].src = imgOn;
		text_on(imgName,'nav5');
	}
}


function img_inact(imgName) {
	if (browser && loadpage == 1) {
		imgOff = eval(imgName + "off.src");
		document [imgName].src = imgOff;
		text_off(imgName,'nav5');
		if (x==1) {
			if (imgName=="nav1") setTimeout("img_inact2('nav1')",200);
			if (imgName=="nav2") setTimeout("img_inact2('nav2')",200);
			if (imgName=="nav3") setTimeout("img_inact2('nav3')",200);
			if (imgName=="nav4") setTimeout("img_inact2('nav4')",200);
			if (imgName=="nav5") setTimeout("img_inact2('nav5')",200);
		}
		x=0;
	}
}


function img_press(imgName) {
	if (browser && loadpage == 1) {
		imgPress = eval(imgName + "press.src");
 		document [imgName].src = imgPress;
 		x=1;
		if (imgName=="nav1") setTimeout("img_act2('nav1')",75);
 		if (imgName=="nav2") setTimeout("img_act2('nav2')",75);
		if (imgName=="nav3") setTimeout("img_act2('nav3')",75);
		if (imgName=="nav4") setTimeout("img_act2('nav4')",75);
		if (imgName=="nav5") setTimeout("img_act2('nav5')",75);
	}
}


function img_act2(imgName) {
	if (browser && loadpage == 1) {
		if(x==1) {
			imgOn = eval(imgName + "on.src");
			document [imgName].src = imgOn;
		}
		else if (x==0) {
			imgOff = eval(imgName + "off.src");
			document [imgName].src = imgOff;
		}
	}
}


function img_inact2(imgName) {
	if (browser && loadpage == 1) {
		imgOff = eval(imgName + "off.src");
		document [imgName].src = imgOff;
		x=0;
	}
}


function text_on(imgName,fixedval) {
	if (browser && loadpage == 1) {
		imgTextOn = eval(imgName + "texton.src");
		document [fixedval].src = imgTextOn;
	}
}


function text_off(imgName,fixedval) {
	if (browser && loadpage == 1) {
		imgTextOff = eval(imgName + "textoff.src");
		document [fixedval].src = imgTextOff;
	}
}

var focusflag = 0;
var focustime = null;

function set_focus(){
	if (browser && loadpage == 1) {
		window.top.focus();
		if (focustime != null) clearTimeout(focustime);
	}
	else if (focusflag == 0) {
		focustime = setTimeout("set_focus()",200);
		focusflag = 1;
	}
}

function initnav() {
	loadpage = 1;
	set_focus();
}