Reset the Index of a MySQL table

Sometimes, I will be playing about with a MySQL database, often at the start of an application. I'll fire a load of dummy data in and test. When I've finally done with this phase I'm ready to start from the beginning. I might have an ID field which I'd like to auto increment but this time starting from 0. To reset this field, first empty all the records in the table, then you can apply a line like this:
ALTER TABLE `mytable` AUTO_INCREMENT=0

Two lessons learned about IE from the coal face

Yesterday was a difficult day. It's my own fault. I should have started testing my portableCMS in IE earlier. I came across 2 problems which took more time than I was prepared for in debugging. 

So here is tip number 1. Don't even think of trying to refer to JavaScript constants in your jQuery calls. It's just not worth the hassle.

Tip number 2. As well as referring to a html5 reset, (I use http://html5resetcss.googlecode.com/files/html5-reset.css), add your own HTML 4 reset. Mine is listed below. You will still have problems, but less.

*

{

    margin:0;

    padding:0;

    border:0;

    outline:0;

    font-size:100%;

    vertical-align:baseline;

    background:transparent;

}

body

{

    font-family:Sans-serif;

    font-size:1em;    

}

h1, h2, h3, h4, h5, h6

{

    margin:0;

    padding:0;

    font-weight:normal;

}

p, th, td, li, dd, dt, ul, ol, blockquote, q, acronym, abbr, a, input, select, textarea

{

    margin:0;

    padding:0;

}

blockquote

{

    margin:1.25em;

    padding:1.25em

}

q

{

   font-style:italic;

}

acronym, abbr

{

   cursor:help; 

}

small

{

    font-size:.85em;

}

big

{

    font-size:1.2em;

}

a, a:link, a:visited, a:active, a:hover

{

    text-decoration:none;

}

table

{

    margin:0;

    padding:0;

    border:none;

}

form

{

    margin:0;

    padding:0;

    display:inline;

}

label

{

    cursor:pointer;

}

.clear { clear:both; }

.floatLeft { float:left; }

.floatRight { float:right; }

.textLeft { text-align:left; }

.textRight { text-align:right; }

.textCenter { text-align:center; }

.textJustify { text-align:justify; }

.blockCenter { display:block; margin-left:auto; margin-right:auto; }

.bold { font-weight:bold; }

.italic { font-style:italic; }

.underline { text-decoration:underline; }

.noindent { margin-left:0; padding-left:0; }

.nomargin { margin:0; }

.nopadding { padding:0; }

.nobullet { list-style:none; list-style-image:none; }