<a href="#main">Main&lt:/a>
<a href="#blackbook">blackbook&lt:/a>
...
<div id="main">....</div>
<div id="blackbook">....</div>

and

$(function(){
  function hide_divs() {
    $('#blackbook,#canvas,#pencil,#murals,#shows,#tattoos,#miscellaneous').filter(':visible').hide();
  }();
  $('a.link').click(function() {
    hide_divs();
    $($(this).attr('href')).show('fast');
    return false;
  });
});

$(function(){
  //THIS HIDES ALL LISTED DIVS ON LOADING OF PAGE
  function hide_divs() {
    $('div.blackbook,div.canvas,div.pencil,div.murals,div.shows,div.tattoos,div.miscellaneous').filter(':visible').hide();
  }();
  $('a.link').click(function() {
    hide_divs();
    //SHOW DIV WITH CLASS CORRESPONDING TO ID OF THE LINK
    $('div.'+$(this).attr('id')).show('fast');
    return false;
  });
});

Its quite unusual that the content divs has classes instead of ids, and links with class instead of hrefs – think of usability for clients without js support
Its better to use

<a href="main">Main&lt:/a>
<a href="blackbook">blackbook&lt:/a>
...
<div id="main">....</div>
<div id="blackbook">....</div>

and

$(function(){
  //THIS HIDES ALL LISTED DIVS ON LOADING OF PAGE
  function hide_divs() {
    $('#blackbook,#canvas,#pencil,#murals,#shows,#tattoos,#miscellaneous').filter(':visible').hide();
  }();
  $('a.link').click(function() {
    hide_divs();
    //SHOW LISTED DIV
    $('#'+$(this).attr('href')).show('fast');
    return false;
  });
});

cheers VP

hide_show_divs = function(d) {
  //HIDE ANY VISIBLE DIVS BEFORE CONTINUING
  $("#all_contents div").each(function(){
    if ($(this).is(':visible')) {
      $(this).hide('fast');
    }
  }
  $(d).show('fast');
  return false;
}

I’m sure this can be optimized

Do I need to use that =false somewhere in my script? I have created a div_switch function that hides all my functions at the bottom, where would I insert the div_switch = false; if needed??

$(document).ready(function(){

  //THIS HIDES ALL LISTED DIVS ON LOADING OF PAGE
  $('div.blackbook').hide();
  $('div.canvas').hide();
  $('div.pencil').hide();
  $('div.murals').hide();
  $('div.shows').hide();
  $('div.tattoos').hide();
  $('div.miscellaneous').hide();

  $('a#blackbook').click(function() {
    //HIDE DIVS
    hide_divs();
    //SHOW LISTED DIV
    $('.blackbook').show('fast');
    return false;
  });

  $('a#canvas').click(function() {
    //HIDE DIVS
    hide_divs();
    //SHOW LISTED DIV
    $('.canvas').show('fast');
    return false;
  });    

  $('a#pencil').click(function() {
    //HIDE DIVS
    hide_divs();
    //SHOW LISTED DIV
    $('.pencil').show('fast');
    return false;
  });    

  $('a#murals').click(function() {
    //HIDE DIVS
    hide_divs();
    //SHOW LISTED DIV
    $('.murals').show('fast');
    return false;
  });    

  $('a#shows').click(function() {
    //HIDE DIVS
    hide_divs();
    //SHOW LISTED DIV
    $('.shows').show('fast');
    return false;
  });    

  $('a#tattoos').click(function() {
    //HIDE DIVS
    hide_divs();
    //SHOW LISTED DIV
    $('.tattoos').show('fast');
    return false;
  });    

  $('a#miscellaneous').click(function() {
    //HIDE DIVS
    hide_divs();
    //SHOW LISTED DIV
    $('.miscellaneous').show('fast');
    return false;
  });    

});

//HIDES ANY VISIBLE DIVS

hide_divs = function() {

    //HIDE ANY VISIBLE DIVS BEFORE CONTINUING
    if ($('div.main').is(':visible')) {
    $('div.main').hide('fast');
    }
    if ($('div.blackbook').is(':visible')) {
    $('div.blackbook').hide('fast');
    }
    if ($('div.canvas').is(':visible')) {
    $('div.canvas').hide('fast');
    }
    if ($('div.pencil').is(':visible')) {
    $('div.pencil').hide('fast');
    }
    if ($('div.murals').is(':visible')) {
    $('div.murals').hide('fast');
    }
    if ($('div.shows').is(':visible')) {
    $('div.shows').hide('fast');
    }
    if ($('div.tattoos').is(':visible')) {
    $('div.tattoos').hide('fast');
    }
    if ($('div.miscellaneous').is(':visible')) {
    $('div.miscellaneous').hide('fast');
    }
}

If there is an easier way to do this, please feel free to educate me, I am a rookie at this scripting stuff.

do_load = function() {
$(’#calendar’).load(this.href, prepare_links);
return false;
}
prepare_links = function() {
$(’.previous-month, .next-month’).click(do_load);
}
$(prepare_links);

Heh.

I hope that code is readable...

The recursion in prepare_links is also something new to me; I didn't realize that you could self-refer to a function definition in this way. Neat. Confusing, but neat.

PS this blog is a great idea!