site = new Array();

site[0] = " SRC=\"http://80.55.54.242/ecs/gfx/logo1.jpg\" alt=\"Economic and Commercial School in Sopot\" ";
site[1] = " SRC=\"http://80.55.54.242/ecs/gfx/logo2.jpg\" alt=\"Economic and Commercial School in Sopot\" ";

index = Math.floor(Math.random() * site.length);

document.write("<IMG " + site[index] + " BORDER=\"0\" height=180 width=244>");