var relativePathUrl = "images/";

var preloadImage = new Array();

preloadImage[1] = new Image();
preloadImage[2] = new Image();
preloadImage[3] = new Image();
preloadImage[1].src = relativePathUrl + "boxheaderhomeon.png";
preloadImage[2].src = relativePathUrl + "boxheadersubmiton.png";
preloadImage[3].src = relativePathUrl + "boxheaderresourceson.png";