function newImage( imgSrc ){

 var imgName = new Image();
 imgName.src = imgSrc;

 return imgName;

}

function change( imgName, imgLocation )
{
 document[imgName].src = imgLocation ;
}

var preloadFlag = false;
function loadImages()
{
 if (document.images)
 {
 oferta_over = new Image("images/menu_element_oferta_o.jpg");
 sprawy_over = new Image("images/menu_element_sprawy_o.jpg");
 rozwod_over = new Image("images/menu_element_rozwod_o.jpg");
 doradz_over = new Image("images/menu_element_doradz_o.jpg");
 biuro_over = new Image("images/menu_element_biuro_o.jpg");
 kontakt_over = new Image("images/menu_element_kontakt_o.jpg");
 english_over = new Image("mages/menu_element_english_o.jpg");

 preloadFlag = true;
 }
}