//preload
function preload() {

	revImage = new Array();
	for(var i=0; i<7; i++){
		revImage[i] = new Image();
		revImage[i].src = "images/menu/btn0" + i + "r.gif";
	}
	
}

//rollOver
function rollover(id){

	document["btn" + id].src = "images/menu/btn" + id + "r.gif";

}

//rollOut
function rollout(id){

	document["btn" + id].src = "images/menu/btn" +  id + ".gif";

}

//popup window
function winOpen(url, w, h, scrl, rsz){

	var op = "width=" + w + ",height=" + h;
	op += ",scrollbars=" + scrl + ",resizable=" + rsz;
	newWin = window.open(url, "", op);

}

//changeImage
function changeImage(pg,ad)
{
	var saf = parseInt(document.imgv.img_cnt.value);
	var min = parseInt(document.imgv.img_min.value);
	var max = parseInt(document.imgv.img_max.value);
	var num = parseInt(document.imgv.img_num.value);
	
	saf = saf + ad;
	if ( saf < min )
	{
		saf = max;
	}
	else if ( saf > max )
	{
		saf = min;
	}
	
	if (num >= 1)
	{
		document.scrn.src = "images/scrn" + String(pg) + "_" + String(saf) + ".jpg"
	}
	if (num >= 2)
	{
		document.pop.src = "images/pop" + String(pg) + "_" + String(saf) + ".gif"
	}
	document.imgv.img_cnt.value = String(saf);
}