function $(v) {
	if (typeof v == 'string') { return document.getElementById(v); }
	else { return v; }
}
function pop_win(url,name,opt) {
	win = window.open(url,name,opt);
	if (window.focus) { win.focus(); }
	return false;
}
function pop(url) {
	win_opt = "width=780,height=600,scrollbars=1,resizable=1";
	return pop_win(url,"",win_opt);
}
function pop_info(url) {
	win_opt = "width=600,height=400,scrollbars=1,resizable=1";
	return pop_win(url,"",win_opt);
}