change1 = new Image();
change1.src = "graphics/but_it_off.png";

change2 = new Image();
change2.src = "graphics/but_it_on.png";

change3 = new Image();
change3.src = "graphics/but_data_off.png";

change4 = new Image();
change4.src = "graphics/but_data_on.png";

change5 = new Image();
change5.src = "graphics/but_database_off.png";

change6 = new Image();
change6.src = "graphics/but_database_on.png";

change7 = new Image();
change7.src = "graphics/but_health_off.png";

change8 = new Image();
change8.src = "graphics/but_health_on.png";

change9 = new Image();
change9.src = "graphics/but_network_off.png";

change10 = new Image();
change10.src = "graphics/but_network_on.png";

change11 = new Image();
change11.src = "graphics/but_software_off.png";

change12 = new Image();
change12.src = "graphics/but_software_on.png";

change13 = new Image();
change13.src = "graphics/but_web_off.png";

change14 = new Image();
change14.src = "graphics/but_web_on.png";

big1 = new Image();
big1.src = "graphics/main.png";

big2 = new Image();
big2.src = "graphics/main_IT.png";

big3 = new Image();
big3.src = "graphics/main_PC_Health.png";

big4 = new Image();
big4.src = "graphics/main_Software.png";

big5 = new Image();
big5.src = "graphics/main_Database.png";

big6 = new Image();
big6.src = "graphics/main_networking.png";

big7 = new Image();
big7.src = "graphics/main_web.png";

big8 = new Image();
big8.src = "graphics/main_data.png";

function imageChange(imageID,imageName,imageID2,imageName2) {


{
document.images[imageID].src = eval(imageName + ".src");
document.images[imageID2].src = eval(imageName2 + ".src");
}

}