if (document.images) {
var segment_nav_color = new Image();
segment_nav_color.src = 'pix/segment-nav-color.jpg';
var segment_nav_color_on = new Image();
segment_nav_color_on.src = 'pix/segment-nav-color_on.jpg';
var segment_nav_color_main = new Image();
segment_nav_color_main.src = 'pix/segment-nav-color_main.jpg';
var segment_nav_mono = new Image();
segment_nav_mono.src = 'pix/segment-nav-mono.jpg';
var segment_nav_mono_on = new Image();
segment_nav_mono_on.src = 'pix/segment-nav-mono_on.jpg';
var segment_nav_mono_main = new Image();
segment_nav_mono_main.src = 'pix/segment-nav-mono_main.jpg';
var segment_nav_color_mono = new Image();
segment_nav_color_mono.src = 'pix/segment-nav-color-mono.jpg';
var segment_nav_color_mono_on = new Image();
segment_nav_color_mono_on.src = 'pix/segment-nav-color-mono_on.jpg';
var segment_nav_color_mono_main = new Image();
segment_nav_color_mono_main.src = 'pix/segment-nav-color-mono_main.jpg';
var segment_nav_impact = new Image();
segment_nav_impact.src = 'pix/segment-nav-impact.jpg';
var segment_nav_impact_on = new Image();
segment_nav_impact_on.src = 'pix/segment-nav-impact_on.jpg';
var segment_nav_impact_main = new Image();
segment_nav_impact_main.src = 'pix/segment-nav-impact_main.jpg';
var segment_nav_label = new Image();
segment_nav_label.src = 'pix/segment-nav-label.jpg';
var segment_nav_label_on = new Image();
segment_nav_label_on.src = 'pix/segment-nav-label_on.jpg';
var segment_nav_label_main = new Image();
segment_nav_label_main.src = 'pix/segment-nav-label_main.jpg';
var segment_nav_pos = new Image();
segment_nav_pos.src = 'pix/segment-nav-pos.jpg';
var segment_nav_pos_on = new Image();
segment_nav_pos_on.src = 'pix/segment-nav-pos_on.jpg';
var segment_nav_pos_main = new Image();
segment_nav_pos_main.src = 'pix/segment-nav-pos_main.jpg';
}
function ChangeNavImg(id,name){
  if (document.images) {document.images[id].src=eval(name+".src"); }
}
var onNav = new Array(6);
onNav[0] = false;
onNav[1] = false;
onNav[2] = false;
onNav[3] = false;
onNav[4] = false;
onNav[5] = false;
function SelectNav(nav){
	for(i=0;i<6;i++) onNav[i] = false;
	onNav[nav] = true;	
	DoUpdate();
}
function DeSelectNav(nav){
//	for(i=0;i<6;i++) onNav[i] = false;
	onNav[nav] = false;	
	DoUpdate();
}
function DoUpdate(){
	if (onNav[0]==false && onNav[1]==false && onNav[2]==false &&
		onNav[3]==false && onNav[4]==false && onNav[5]==false) {
		ChangeNavImg('segment_nav_color','segment_nav_color_main');
		ChangeNavImg('segment_nav_mono','segment_nav_mono_main');
		ChangeNavImg('segment_nav_color_mono','segment_nav_color_mono_main');
		ChangeNavImg('segment_nav_impact','segment_nav_impact_main');
		ChangeNavImg('segment_nav_label','segment_nav_label_main');
		ChangeNavImg('segment_nav_pos','segment_nav_pos_main');
		$('#framebubble_mfp').hide();
	} else {
		if (onNav[0]) {ChangeNavImg('segment_nav_color','segment_nav_color_on');} else {ChangeNavImg('segment_nav_color','segment_nav_color');}
		if (onNav[1]) {ChangeNavImg('segment_nav_mono','segment_nav_mono_on');} else {ChangeNavImg('segment_nav_mono','segment_nav_mono');}
		if (onNav[2]) 
			{
			ChangeNavImg('segment_nav_color_mono','segment_nav_color_mono_on');
			$('#framebubble_mfp').show();
			} else {
			ChangeNavImg('segment_nav_color_mono','segment_nav_color_mono');
			$('#framebubble_mfp').hide();
			}
		if (onNav[3]) {	ChangeNavImg('segment_nav_impact','segment_nav_impact_on');} else {ChangeNavImg('segment_nav_impact','segment_nav_impact');}
		if (onNav[4]) {ChangeNavImg('segment_nav_label','segment_nav_label_on');} else {ChangeNavImg('segment_nav_label','segment_nav_label');}
		if (onNav[5]) {ChangeNavImg('segment_nav_pos','segment_nav_pos_on');} else {ChangeNavImg('segment_nav_pos','segment_nav_pos');}
	}	
}