Focus element with HTML4.01 Strict, CSS 2.1, and JS 1.7

Question

I am trying to figure out if there is a way to auto-focus an input element on page load that is compatible with HTML 4.01 Strict, CSS 2.1, and JS 1.7, since the autofocus attribute is not available to HTML 4.01 and I do not believe the focus method is available in JS 1.7.

Is there a way to still accomplish this with those restrictions?

I think I may have found an answer to my question. According to this w3.org document , the focus method belongs to the DOM Level 1. Does this mean that the method is indeed available?

Answer 1

According to this w3.org document, the focus method belongs to the DOM Level 1 so is available.

Try this code is javascript vanilla.

JAVASCRIPT

window.onload = function() {
   document.getElementById("Box1").focus();
};

HTML

<input type="text" id="Box1"/>

Anthony who was the person was asking confirm from his research. thx. Anthony Hope this help other people.