<BODY onkeydown="JumpToNextBox()">
<script>
function JumpToNextBox(){
var dom=document.all;
for(i=0;i<dom.length;i++){
if(dom[i].tagName=="INPUT"&&event.keyCode==13){
if(dom[i].type.toLowerCase()=="text")
event.keyCode=9;
}
}
}
</script>