TERA Online Overall Gear Level Calculator

It does what the title says

by Dr. Ninjimonimous

HTML

<h1> TERA Online Overall Gear Level calculator</h1>
<form>
<table>
<tr>
<td><label>Weapon: </label></td><td><input type=text value=1 id="weapon"></td>
  <td><label>Chest: </label></td><td><input type=text value=1 id="chest"></td>
</tr>
<tr>
  <td><label>Gloves: </label></td><td><input type=text value=1 id="gloves"></td>
  <td><label>Boots: </label></td><td><input type=text value=1 id="boots"></td>
</tr>
<tr>
  <td><label>Belt: </label></td><td><input type=text value=1 id="belt"></td>
  <td><label>Earring1: </label></td><td><input type=text value=1 id="earring1"></td>
</tr>
<tr>
  <td><label>Earring2: </label></td><td><input type=text value=1 id="earring2"></td>
  <td><label>Ring1: </label></td><td><input type=text value=1 id="ring1"></td>
</tr>
<tr>
  <td><label>Ring2: </label></td><td><input type=text value=1 id="ring2"></td>
  <td><label>Innerwear: </label></td><td><input type=text value=1 id="innerwear"></td>
</tr>
<tr>
  <td><label>Brooch: </label></td><td><input type=text value=1 id="brooch"></td>
  <td><label>Neck: </label></td><td><input type=text value=1 id="neck"></td>
</tr>
</table>
<input type="button" id="action" value="Calculate">
</form><br/>

<label>Item Level: </label><input type=text id="result" readonly value=1> ± 1 ilvl tolerance

JavaScript

$("#action").click(function(){
	var weapon_ = $("#weapon").val();
  var chest_ = $("#chest").val();
  var gloves_ = $("#gloves").val();
  var boots_ = $("#boots").val();
  var belt_ = $("#belt").val();
  var earing1_ = $("#earring1").val();
  var earing2_ = $("#earring2").val();
  var ring1_ = $("#ring1").val();
  var ring2_ = $("#ring2").val();
  var brooch_ = $("#brooch").val();
  var neck_ = $("#neck").val();
  var innerwear_ = $("#innerwear").val();
  
  //Those percentages are approximated.
  var trinketpc = 0.02999;
  var broochpc = 0.02999;
  var beltpc = 0.02999;
  var chestpc = 0.2091;
  var glovespc = 0.205;
  var weaponpc = 0.2795;
  var bootspc = 0.1900;
  var innerwpc = 0.0206;
 
  
  var earringil = (earing1_ * trinketpc) + (earing2_ * trinketpc) + 1;
  
  var beltil = (belt_ * beltpc) + (innerwear_ * innerwpc);
  
  var gearil = (chest_ * chestpc) + (gloves_ * glovespc) + (weapon_ * weaponpc) + (boots_ * bootspc) + 1;
  
    var trinketil =  ((neck_ * trinketpc) + (brooch_ * trinketpc) + 1) + beltil;
  
  var total = Math.round((earringil + trinketil + 1)+gearil+1);
  
  $("#result").val(total);
});