function popUp(FileAllegato, ImgWidth, ImgHeight) {
		ImgWidth	= ImgWidth + 4;
		ImgHeight = ImgHeight + 24;

		MinWidth	= 158;
		MinHeight = 103;
		MaxWidth	= screen.availWidth;
		MaxHeight	= screen.availHeight;

		PopWidth	= MinWidth;
		PopHeight = MinHeight;

		if (ImgWidth > MinWidth)		PopWidth = ImgWidth;
		if (ImgHeight > MinHeight)	PopHeight = ImgHeight;

		if (PopWidth > MaxWidth)		PopWidth	= MaxWidth;
		if (ImgHeight > MaxHeight)	PopHeight = MaxHeight;

		PopLeft	= (screen.availWidth - PopWidth) / 2;
		PopTop	= (screen.availHeight - PopHeight) / 2;

		window.open("popup/popup_"+FileAllegato+".htm", "popUp", "width="+PopWidth+",height="+PopHeight+",left="+PopLeft+",top="+PopTop+",scrollbars=0,resizable=no,status=no");
	}