Customizable Calendar Class

<? 
  class calendar { 
    var 
        
$daynamefont,$daynamebgcolor,$daynamecolor,$daynamesize,$daynamebold,$daynameitalic 
, 
       $dayfont,$daybgcolor,$daycolor,$dayactivecolor,$daysize,$daybold,$dayitalic, 
       $showdate,$bordersize,$timestamp; 

    function calendar(){ 
      if(empty($this->daynamefont)==true)$this->daynamefont="Arial, sans-serif"; 
      if(empty($this->daynamebgcolor)==true)$this->daynamebgcolor="#000060"; 
      if(empty($this->daynamecolor)==true)$this->daynamecolor="#FFFFFF"; 
      if(empty($this->daynamesize)==true)$this->daynamesize="3"; 
      if(empty($this->daynamebold)==true)$this->daynamebold=true; 
      if(empty($this->daynameitalic)==true)$this->daynameitalic=false; 
      if(empty($this->dayfont)==true)$this->dayfont="Arial, sans-serif"; 
      if(empty($this->daybgcolor)==true)$this->daybgcolor="#FFCA00"; 
      if(empty($this->daycolor)==true)$this->daycolor="#000000"; 
      if(empty($this->dayactivecolor)==true)$this->dayactivecolor="#FF0000"; 
      if(empty($this->daysize)==true)$this->daysize="3"; 
      if(empty($this->daybold)==true)$this->daybold=true; 
      if(empty($this->dayitalic)==true)$this->dayitalic=false; 
      if(empty($this->showdate)==true)$this->showdate=true; 
      if(empty($this->bordersize)==true)$this->bordersize="2"; 
      if(empty($this->timestamp)==true)$this->timestamp=time(); 
    } 

    function show(){ 
      $day=date("j",$this->timestamp); 
      $month=date("n",$this->timestamp); 
      $year=date("Y",$this->timestamp); 
      if($this->daynamebold==true){ 
        $daynametextprefix="<b>"; 
        $daynametextsuffix="</b>"; 
      } 
      if($this->daynameitalic==true){ 
        $daynametextprefix.="<i>"; 
        $daynametextsuffix="</i>".$daynametextsuffix; 
      } 
      if($this->daybold==true){ 
        $daytextprefix="<b>"; 
        $daytextsuffix="</b>"; 
      } 
      if($this->dayitalic==true){ 
        $daytextprefix.="<i>"; 
        $daytextsuffix="</i>".$daytextsuffix; 
      } 
      if(checkdate($month,$day,$year)==true){ 
        $maxdays=31; 
        while(checkdate($month,$maxdays,$year)==false)$maxdays--; 
        $startday=1-date("w",mktime(0,0,0,$month,1,$year)); 
        print("<table border='".$this->bordersize."' cellspacing='0' cellpadding='0'><tr 
bgcolor='".$this->daybgcolor."'><td>\n"); 
        print("  <table border='0' cellspacing='0' cellpadding='2'>\n"); 
        if($this->showdate==true)print("    <tr bgcolor='".$this->daynamebgcolor."'><td 
colspan='7'><font face='".$this->daynamefont."' color='".$this->daynamecolor."' size='".$this- 
>daynamesize."'><div align='center'>".$daynametextprefix.date("F",mktime 
(0,0,0,$month,$day,$year))." $year".$daynametextsuffix."</div></font></td></tr>\n"); 
        print("    <tr bgcolor='".$this->daynamebgcolor."'><td align='center'><font face='".$this- 
>daynamefont."' color='".$this->daynamecolor."' size='".$this- 
>daynamesize."'>".$daynametextprefix." S ".$daynametextsuffix."</font></td><td 
align='center'><font face='".$this->daynamefont."' color='".$this->daynamecolor."' 
size='".$this->daynamesize."'>".$daynametextprefix." 
M ".$daynametextsuffix."</font></td><td align='center'><font face='".$this->daynamefont."' 
color='".$this->daynamecolor."' size='".$this->daynamesize."'>".$daynametextprefix." 
T ".$daynametextsuffix."</font></td><td align='center'><font face='".$this->daynamefont."' 
color='".$this->daynamecolor."' size='".$this->daynamesize."'>".$daynametextprefix." 
W ".$daynametextsuffix."</font></td><td align='center'><font face='".$this->daynamefont."' 
color='".$this->daynamecolor."' size='".$this->daynamesize."'>".$daynametextprefix." 
T ".$daynametextsuffix."</font></td><td align='center'><font face='".$this->daynamefont."' 
color='".$this->daynamecolor."' size='".$this->daynamesize."'>".$daynametextprefix." 
F ".$daynametextsuffix."</font></td><td align='center'><font face='".$this->daynamefont."' 
color='".$this->daynamecolor."' size='".$this->daynamesize."'>".$daynametextprefix." 
S ".$daynametextsuffix."</font></td>"); 
        $weekdaycount=0; 
        for($daycount=$startday;$daycount<=$maxdays;$daycount++){ 
          if(($weekdaycount%7)==0)print("</tr>\n    <tr bgcolor='".$this->daybgcolor."'>"); 
          if($daycount>0){ 
            print("<td align='right'>"); 
            if($daycount!=$day){ 
              print("<font face='".$this->dayfont."' color='".$this->daycolor."' size='".$this- 
>daysize."'>".$daytextprefix." ".$daycount." ".$daytextsuffix."</font>"); 
            } else print("<font face='".$this->dayfont."' color='".$this->dayactivecolor."' 
size='".$this->daysize."'>".$daytextprefix." ".$daycount." ".$daytextsuffix."</font>"); 
          } else print("<td>"); 
          print("</td>"); 
          $weekdaycount++; 
        } 
        while($weekdaycount%7<>0){ 
          print("<td></td>"); 
          $weekdaycount++; 
        } 
        print("</tr>\n  </table>\n"); 
        print("</td></tr></table>\n"); 
      } else print("Incorrect date"); 
    } 
  } 
?>