Syntax highlight code surrounded by the {syntaxhighlighter SPEC}...{/syntaxhighlighter} tags, where SPEC is a Syntaxhighlighter options string or "class="OPTIONS" title="the title".
Example: {syntaxhighlighter brush:php;collapse:true;first-line:50;highlight:[57,81,101];class-name:'some_class some_other_class'}...{/syntaxhighlighter}
This will syntax highlight PHP code, initially collapsed, start line number at 50, highlight lines 57, 81 and 101 and tag highlighted code with class names some_class and some_other_class.
See the Syntaxhighlighter javascript library site for additional helps.