function popup(pic, width, height)
{
	// Zusatz für Rand rechts und links
	xsize = width  + 35; 
	//Zusatz für Rand oben und unten - damit Button angezeit werden kann
	ysize = height + 100; 

	ScreenWidth = screen.width;
	ScreenHeight = screen.height;

	xpos = (ScreenWidth/2)-(xsize/2);
	ypos = (ScreenHeight/2)-(ysize/2);

    NewWindow=window.open("","Pic","height="+ysize+",width="+xsize+",scrollbars=no,resizable=no,top="+ypos+", left="+xpos+"");
	NewWindow.document.write ("<html><head><title>Detailansicht des Bildes :");
	NewWindow.document.write ("</title></head>");
    NewWindow.document.write ("<body bgcolor='#FFFFFF' onload='focus()'>");
	NewWindow.document.write ("<table align='center'><tr>");
	NewWindow.document.write ("<td align='center' valign='top'>");
	NewWindow.document.write ("<table border='0' bgcolor='#FFFFFF' cellpadding='0' cellspacing=''><tr><td align='center'>");
	NewWindow.document.write ("<img src=");
	NewWindow.document.write (pic);
	NewWindow.document.write (">");
	NewWindow.document.write ("</tr></table>");
	NewWindow.document.write ("</td></tr><tr>");
	NewWindow.document.write ("<td align='center' valign='bottom'>");
	NewWindow.document.write ("<br><center><form><input type='button' value='Fenster schliessen' style='font-family: Verdana; font-size: 10px' onClick='self.close()'>");
	NewWindow.document.write ("</td></tr></table>");
	NewWindow.document.write ("</form></body></html>");
	NewWindow.document.close();
    NewWindow.resizeTo(xsize,ysize);
}

