Which statement is true about the program eliza?

eliza was developed in 1959. it is an interactive program that can carry out a conversation in english. an updated version of eliza passed the turing test in late 2000. eliza was programmed using lisp.

Function tipcalculate (slider, bill){  var tip = document.getelementbyid('tipamount');   var slideval = document.getelementbyid('slideval');   var bill = document.getelementbyid(bill).value;   var prcnt = slider * .01;       if (bill == null || bill == '') {      tip.innerhtml = ' enter an amount';       return false;   }  if(isnan(bill)) {      tip.innerhtml = ' enter a number';       return false;   }  if(bill > = 0){      tip.innerhtml = '$' + (bill * prcnt) .tofixed(2);   slideval.innerhtml = slider + '%';   }}

All sites use html, css and javascript for front end programming. 90% use php for server side, and the other 10% use nodejs or something.

Iwould say you need to multiply and add