function newImage(arg) {

	if (document.images) {

		rslt = new Image();

		rslt.src = arg;

		return rslt;

	}

}



function act(imgName) {

  if (document.images) {

     if (imgName != mypage) {

    document.images[imgName].src = reddot.src;

    }

    }

}



function inact(imgName) {

  if (document.images) {

     if (imgName != mypage) {

    document.images[imgName].src = maindot.src;

    }

    }

}



function isoff(imgName,imgType) {

  if (document.images) {

     if (imgType == "back") {

    document.images[imgName].src = backyellow.src;

    }

    if (imgType == "next") {

    document.images[imgName].src = nextyellow.src;

    }

    if (imgType == "pre") {

    document.images[imgName].src = previousyellow.src;

    }

    }

}



function ison(imgName,imgType) {

  if (document.images) {

    if (imgType == "pre") {

    document.images[imgName].src = previousred.src;

   }

     if (imgType == "back") {

    document.images[imgName].src = backred.src;

   }

   if (imgType == "next") {

    document.images[imgName].src = nextred.src;

   }



    }

}





var preloadFlag = false;

function preloadImages() {

	if (document.images) {

		reddot = newImage("../images/reddot.gif");

		maindot = newImage("../images/main.gif");

		pagedot = newImage("../images/pagedot.gif");

		backyellow = newImage("../images/back4.gif");

		backred = newImage("../images/back5.gif");

		previousyellow = newImage("../images/previous1.gif");

		previousred = newImage("../images/previous2.gif");

		nextyellow = newImage("../images/next1.gif");

		nextred = newImage("../images/next2.gif");

		preloadFlag = true;

	}

}