Java Script

i made a java script code to get the price from a field and convert it from Egyptian to us dollars but it shows me the code as its text while if i copy the same code it works fine like the last Procedure filed.

Java Script:
// JavaScript Document

var myTable = document.getElementById(“myTable”);

var myPrice = myTable.getElementsByTagName(“td”);

for ( i = 5; i < myPrice.length; i += 3){

var x = i – 1;

var myNum = myPrice[x].innerHTML;

var myEditNumber = “[convert number=” + myNum + ” from=’egp’ to=’usd’] $”;

var changeCurruncy = myPrice[i].innerHTML = myEditNumber;

}

window.alert (“Java is WORKING”);

PLEASE ADVICE.

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