if (document.images) {
	 btnHomeOff = new Image
	 btnHomeOn = new Image

	 btnHomeOff.src = 'images/btnHome_off.png';
	 btnHomeOn.src = 'images/btnHome_on.png';
	 
	 btnCollOff = new Image
	 btnCollOn = new Image

	 btnCollOff.src = 'images/btnCollection_off.png';
	 btnCollOn.src = 'images/btnCollection_on.png';
	 
	 btnPressOff = new Image
	 btnPressOn = new Image

	 btnPressOff.src = 'images/btnPress_off.png';
	 btnPressOn.src = 'images/btnPress_on.png';
	 
	 btnAboutOff = new Image
	 btnAboutOn = new Image

	 btnAboutOff.src = 'images/btnAbout_off.png';
	 btnAboutOn.src = 'images/btnAbout_on.png';
	 
	 btnContactOff = new Image
	 btnContactOn = new Image

	 btnContactOff.src = 'images/btnContact_off.png';
	 btnContactOn.src = 'images/btnContact_on.png';
	 
	 imgHome = new Image

	 imgHome.src = 'images/home_01.png';
 }