if (document.images)
{
  pic1= new Image(161,56); 
  pic1.src="images/startA.jpg"; 

  pic2= new Image(161,56); 
  pic2.src="images/historiaA.jpg"; 

  pic3= new Image(161,56); 
  pic3.src="images/konkursA.jpg"; 
  
  pic4= new Image(161,56); 
  pic4.src="images/laureaciA.jpg";
  
  pic5= new Image(161,56); 
  pic5.src="images/warunkiA.jpg";  
}