what: call more than one JavaScript function
in a body tag (or other) event handler

End each function call with a semi-colon ;

Like this:

<body onload="someFunction();otherFunction();">

or, say, in a mouseover...

onMouseOver="someFunction();otherFunction();"

In JavaScript, the semi-colon is essentially an end-of-line marker. Within reasonable limits, you can actually write a whole script inside of an event handler.

The same thing applies to the href="javascript:etc" structure. For instance:

<a href="javascript:someFunction();otherFunction();">
Click Here
</a>