if (document.images) {
	about_off= new Image(98,25);
	about_off.src='img/about_off.gif';
	about_hover= new Image(98,25);
	about_hover.src='img/about_hover.gif';
	
	portfolio_off= new Image(90,25);
	portfolio_off.src='img/portfolio_off.gif';
	portfolio_hover= new Image(90,25);
	portfolio_hover.src='img/portfolio_hover.gif';
	
	local_nav_off1 = new Image(10,10);
	local_nav_off1.src= 'img/nav-num_lt_off_1.gif';
	local_nav_hover1 = new Image(10,10);
	local_nav_hover1.src= 'img/nav-num_lt_hover_1.gif';
	
	local_nav_off2 = new Image(10,10);
	local_nav_off2.src= 'img/nav-num_lt_off_2.gif';
	local_nav_hover2 = new Image(10,10);
	local_nav_hover2.src= 'img/nav-num_lt_hover_2.gif';
	
	local_nav_off3 = new Image(10,10);
	local_nav_off3.src= 'img/nav-num_lt_off_3.gif';
	local_nav_hover3 = new Image(10,10);
	local_nav_hover3.src= 'img/nav-num_lt_hover_3.gif';
}