I was pulling my hair just for some silly stuff. All I wanted was to put two external javascript file for my floundering page – that was it!! and I do it as
<script language="javascript" src="sourceone" /> <script language="javascript" src="sourcetwo" />
BTW, I am using firefox on ubuntu, then when I try to run the page it would turn white. Astonishingly, the kick for the error was
<script language="javascript" src="sourceone"></script> <script language="javascript" src="sourcetwo" ></script>