window.
onload=function(){
var oBtn
=document.
getElementById(
"btn");
var sel
=document.
getElementById(
"select");
oBtn.
onclick=function(){
var index
=sel.
selectedIndex ;
var val
=sel.options[index].value;
var txt
= sel.options[index].text;
console.
log(index);
console.
log(val);
console.
log(txt);
}
}
