document.addEventListener("DOMContentLoaded", function() {
    renderMathInElement(document.body, {
      // Standard options::
      delimiters: [
          {left: '$$', right: '$$', display: true},
          {left: '$', right: '$', display: false},
          {left: '\\(', right: '\\)', display: false},
          {left: '\\[', right: '\\]', display: true}
      ],
      throwOnError : false
    });

    // The math is now processed, so we can find all the tags:
    var tags = document.querySelectorAll('span.tag');
    
    // Loop through the tags and get the (zero-indexed) tag numbers:
    // Also, get the original LaTeX for the equation to keep track of which tag number goes with which equation
    tags.forEach(function(tag, i) {
          console.log("Tag number "+(i+1)+": "+ tag.closest('span.katex').querySelector('annotation').textContent)
    });	
});