public static function setDay($ts = null, $day = 1)
	{
		list($H, $i, $s, $m, $d, $Y) = sfDateTimeToolkit::breakdown($ts);
		
		return mktime($H, $i, $s, $m, $day, $Y);
	}
public static function setDay($ts = null, $day = 1)
	{
		list($H, $i, $s, $m, $d, $Y) = sfDateTimeToolkit::breakdown($ts);
		
		return mktime($H, $i, $s, $m, $day, $Y);
	}
public static function setDay ( $ ts = null , $ day = 1 ) { list ( $ H , $ i , $ s , $ m , $ d , $ Y ) = sfDateTimeToolkit :: breakdown ( $ ts ) ; return mktime ( $ H , $ i , $ s , $ m , $ day , $ Y ) ; }
Set the day value of this timestamp.

@param	timestamp
@param	int
@return	timestamp
Set the day value of this timestamp .