function zoom_in(file, iWidth, iHeight)
{	
	if (window.parent.location.href.toLowerCase().indexOf("/english/") != -1) path_lang = '/english';
	else path_lang = '';
	
	if(iWidth == 0) iWidth = 600;
	if(iHeight == 0) iHeight = 400;
	
	if(screen.width) wleft = Math.round( screen.width / 2 - iWidth / 2);
	else wleft = 200;
	
	if(screen.height) wtop = Math.round( screen.height / 5 );
	else wtop = 100;
	
	open_str = "toolbar=no,scrollbars=no,resizable=no,copyhistory=no,";
	open_str = open_str+"width="+iWidth+",height="+iHeight+",top="+wtop+",left="+wleft;

	window.open(path_lang+"/zoom_in/?f="+file,"zoom_win",open_str);
	return false;
}