function pop_win(url,windowname,width,height) {
	var features="location=no, menubar=no, status=no, scrollbars=no, resizable=no, toolbar=no";
	if (width) {
		if (window.screen.width > width)
			features+=", left="+(window.screen.width-width)/2;
		else width=window.screen.width;
		features+=", width="+width;
	}
	if (height) {
		if (window.screen.height > height)
			features+=", top="+(window.screen.height-height)/2;
		else height=window.screen.height;
		features+=", height="+height;
	}
	window.open(url,windowname,features);
}

function pop_win_aniv(url,windowname,width,height) {
	var features="location=no, menubar=no, status=no, scrollbars=yes, resizable=no, toolbar=no";
	if (width) {
		if (window.screen.width > width)
			features+=", left="+(window.screen.width-width)/2;
		else width=window.screen.width;
		features+=", width="+width;
	}
	if (height) {
		if (window.screen.height > height)
			features+=", top="+(window.screen.height-height)/2;
		else height=window.screen.height;
		features+=", height="+height;
	}
	window.open(url,windowname,features);
}

function pop_win_photo365(url,windowname,width,height) {
	var features="location=no, menubar=no, status=no, scrollbars=no, resizable=yes, toolbar=no";
	if (width) {
		if (window.screen.width > width)
			features+=", left="+(window.screen.width-width)/2;
		else width=window.screen.width;
		features+=", width="+width;
	}
	if (height) {
		if (window.screen.height > height)
			features+=", top="+(window.screen.height-height)/2;
		else height=window.screen.height;
		features+=", height="+height;
	}
	window.open(url,windowname,features);
}