var gkMaxPics = 5;
var giCurPic = 1;
var set = 6;
function scrollPic(xsDirection) {
	switch(xsDirection) {
		case "next":
			giCurPic = 1 + (giCurPic % gkMaxPics);
			break;
		case "prev":
			giCurPic = 1 + ((giCurPic + (gkMaxPics - 2)) % gkMaxPics);
			break;
	}
	
	showScreen(giCurPic);
}
function showScreen(xiWhich) {
	giCurPic = xiWhich; // this is in case the function is called from the thumbnail click
	document.ScreenNum.CurPicNum.value = xiWhich;
	document["screenpic"].src = "screens/set" + set + "/screenthumb_" + eval(xiWhich) + ".jpg";
}
function popwin() {
	window.open("screens_view.asp?set=" + set + "&id=" + eval(giCurPic),"screens","toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no,width=800,height=600")
}
function scrollPic(xsDirection) {
	switch(xsDirection) {
		case "next":
			giCurPic = 1 + (giCurPic % gkMaxPics);
			break;
		case "prev":
			giCurPic = 1 + ((giCurPic + (gkMaxPics - 2)) % gkMaxPics);
			break;
	}
	showScreen(giCurPic);
}
function getNumPics() {
	return gkMaxPics;
}