function open_top(url, name, params, Wwidth, Wheight) {
	Swidth = screen.width;
	Sheight = screen.height;

	Wleft = (Swidth / 2) - (Wwidth / 2) - 8;
	Wtop = (Sheight / 2) - (Wheight / 2) - 20;
	
	Wtop += 40;

	params = params+",left="+Wleft+",top="+Wtop+",width="+Wwidth+",height="+Wheight;

	window.open(url, name, params);
}

function open_center(url, name, params, Wwidth, Wheight) {
	Swidth = screen.width;
	Sheight = screen.height;

	Wleft = (Swidth / 2) - (Wwidth / 2) - 8;
	Wtop = (Sheight / 2) - (Wheight / 2) - 20;

	params = params+",left="+Wleft+",top="+Wtop+",width="+Wwidth+",height="+Wheight;

	window.open(url, name, params);
}

function open_right(url, name, params, Wwidth, Wheight) {
	Swidth = screen.width;
	Sheight = screen.height;

	Wleft = ((Swidth / 2) + (753 / 2)) - Wwidth - 8; // (Wwidth / 2)
	Wtop = (Sheight / 2) - (Wheight / 2) - 20;

	params = params+",left="+Wleft+",top="+Wtop+",width="+Wwidth+",height="+Wheight;

	window.open(url, name, params);
}

function open_url(url, name) {
	name = window.name
}

var winForum;
function open_forum(url, name, params, Wwidth, Wheight) {
	Swidth = screen.width;
	Sheight = screen.height;

	Wleft = (Swidth / 2) - (Wwidth / 2) - 8;
	Wtop = (Sheight / 2) - (Wheight / 2) - 20;

	params = params+",left="+Wleft+",top="+Wtop+",width="+Wwidth+",height="+Wheight;
	winForum = window.open(url, name, params);
	winForum.focus();
}