if(document.images)
	{
		p1 =  new Image();
		p1.src = "graphics/btn_home_over.gif";
		
		p2 =  new Image();
		p2.src = "graphics/btn_what_over.gif";
		
		p3 =  new Image();
		p3.src = "graphics/btn_news_over.gif";
		
		p4 =  new Image();
		p4.src = "graphics/btn_case_over.gif";
		
		p5 =  new Image();
		p5.src = "graphics/btn_links_over.gif";
		
		p6 =  new Image();
		p6.src = "graphics/btn_resource_over.gif";
		
		p7 =  new Image();
		p7.src = "graphics/btn_contact_over.gif";					
	
	}