srcElement table style

<script language="JavaScript1.2">
function changeto(highlightcolor){
source=
if (=="TR"||=="TABLE")
return
while(!="TD")
source=
if (!=highlightcolor&&!="ignore")
=highlightcolor
}

function changeback(originalcolor){
if (()||()||=="ignore")
return
if (!=source)
=originalcolor
}
</script>
<table onMouseOver="changeto('white')" onMouseOut="changeback('#999999')">