function write(source) {

 document.write(source);

}
function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {

        if( document.getElementById )
          elem = document.getElementById(changeImages.arguments[0]);
        else if( document.all )
            elem = document.all[changeImages.arguments[0]];
        else if( document.layers )
          elem = document.layers[changeImages.arguments[0]];
        vis = elem.style;
        if(changeImages.arguments[0].length<10)
        {
          vis.backgroundImage="url("+changeImages.arguments[1]+")";
        }  
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		nav1_over = newImage("../images/nav1-over.gif");
		nav2_over = newImage("../images/nav2-over.gif");
		nav3_over = newImage("../images/nav3-over.gif");
		nav4_over = newImage("../images/nav4-over.gif");
		nav5_over = newImage("../images/nav5-over.gif");
		nav6_over = newImage("../images/nav6-over.gif");
		preloadFlag = true;
	}
}