MediaWiki:Common.js

/* Any JavaScript here will be loaded for all users on every page load. */
function bleedResistance() {
  var x, y, z, a, text, text2, text3;

  x = document.getElementById("numb").value;
  y = 250+(550+150*(x-2))*(x-1);
  z = 5+0.5*(x-1);
  a = 5+0.2*(x-1);
  text = y; text2 = z; text3 = a;
  document.getElementById("demo").innerHTML = text;
  document.getElementById("demo2").innerHTML = text2;
  document.getElementById("demo3").innerHTML = text3;
}

$(function () {
  if ($('#bleedResistance').length) {
    document.getElementById('bleedResistance').innerHTML =
      '<p>Please input the current level:</p>' +
      '<input id="numb" type="number" style="width: 130px">' +
      '<button type="button" onclick="bleedResistance()">Submit</button>' +
      '<p><img src="Gold.png"> <a id="demo">250</a></p>' +
      '<p><a id="demo2">5</a>%</p>' +
      '<p><a id="demo3">5</a>%</p>';
  }
});