<?php 

// This php script outputs one of four cascading style sheets,
// at random.  First, I have to set the content type of the
// output to be text/css instead of text/html.  Note that this
// will only work if there are no blanks or other characters
// in the output before the Content-type header.

header("Content-type: text/css");

// Initialize the random number generator.

mt_srand( (double)microtime() * 1000000 );

// Select the output based on a random number between
// 0 and 3 inclusive.

switch( mt_rand(0,3) ) {

case 0:
?>

    body {
       background: #FFFFCC;
	    color: #330000;
       margin-left: 30pt;
       margin-right: 30pt;
    }
    h1, h2, h3  {
	    color: #CC0000;
    }

<?php
break;
case 1:
?>

    body {
       background: #DDDDFF;
	    color: #000099;
    }
    a:link {
       color: #00CC00;
    }
    a:active {
       color: #cc0000;
    }
    a:visited {
       color: #0000CC;
    }
    h1, h2, h3  {
	    color: #009999;
    }

<?php
break;
case 2:
?>

    body {
       background: black;
	    color: white;
       margin-left: 100pt;
       margin-right: 100pt;
    }
    a:link {
       color: #FF0000;
    }
    a:active {
       color: #FF00FF;
    }
    a:visited {
       color: #CCCCCC;
    }
    h1, h2, h3  {
	    color: #FFFF00;
    }

<?php
break;
case 3:
?>

    body {
       background: white;
	    color: gray;
       margin-left: 30pt;
       margin-right: 30pt;
    }
    h1, h2, h3  {
	    color: cyan;
    }

<?php
}
?>