Javascript calculator not working. -


i created javascript calculator little while ago. worked me ages, after going have discovered simple doesn't work @ anymore.

here js fiddle... http://jsfiddle.net/adammartin121/xxfxv/

this code used. it's long , unnecessary. know firstly why it's not working, , secondly more efficient way of doing this?

javascript code...      var display = document.getelementbyid("display");   document.addeventlistener("domcontentloaded", init, false);   function init() {  var name = prompt("enter name", "");     if (name == null)     { document.getelementbyid("head").innerhtml="enter name!";       }     else  {     document.getelementbyid("head").innerhtml= "<p>welcome, " +name+ ". </p> <p2> simple javascript calculator. open source , designed people learn javascript. <br> feel free copy , paste code, , use how wish. </p>";  }  document.getelementbyid("calc").display.style.block;  } function naught() { var display= document.getelementbyid("display");         display.value+="0";     } function one() {     var display= document.getelementbyid("display");     display.value+="1"     } function two() {         var display= document.getelementbyid("display");     display.value+= "2";     } function three() {     var display= document.getelementbyid("display");     display.value+="3";     } function four() {     var display= document.getelementbyid("display");     display.value+="4";     } function five() {     var display= document.getelementbyid("display");     display.value+="5";     } function six() {     var display= document.getelementbyid("display");     display.value+="6";     } function seven() {     var display= document.getelementbyid("display");     display.value+="7";     } function eight() {     var display= document.getelementbyid("display");     display.value+="8";     } function nine() {     var display= document.getelementbyid("display");     display.value+="9"; } function add() {     var display= document.getelementbyid("display");     display.value+="+"; } function take() {     var display= document.getelementbyid("display");     display.value+="-"; } function times() {     var display= document.getelementbyid("display");     display.value+="*"; } function divi() {     var display= document.getelementbyid("display");     display.value+="/"; } function equal() {     var display= document.getelementbyid("display");         display.value= eval(display.value); }

thanks in advance.

this line:

document.getelementbyid("calc").display.style.block;

should (style comes before display):

document.getelementbyid("calc").style.display.block;

also, you're selecting in javascript id calc, in html table, you've given class calc (<table class="calc">) instead, change id (<table id="calc">) , voila.

working jsfiddle here.


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