How do you automatically set the focus to a textbox when a web page loads?

If you're using jquery:

$(function() {
  $("#Box1").focus();
});

or prototype:

Event.observe(window, 'load', function() {
  $("Box1").focus();
});

or plain javascript:

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

though keep in mind that this will replace other on load handlers, so look up addLoadEvent() in google for a safe way to append onload handlers rather than replacing.

In HTML there's an autofocus attribute to all form fields. There's a good tutorial on it in Dive Into HTML 5. Unfortunately it's currently not supported by IE versions less than 10.

To use the HTML 5 attribute and fall back to a JS option:

<input id="my-input" autofocus="autofocus" />
<script>
  if (!("autofocus" in document.createElement("input"))) {
    document.getElementById("my-input").focus();
  }
</script>

No jQuery, onload or event handlers are required, because the JS is below the HTML element.

Edit: another advantage is that it works with JavaScript off in some browsers and you can remove the JavaScript when you don't want to support older browsers.

Edit 2: Firefox 4 now supports the autofocus attribute, just leaving IE without support.

You need to use javascript:

<BODY onLoad="document.getElementById('myButton').focus();">

@Ben notes that you should not add event handlers like this. While that is another question, he recommends that you use this function:

function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function() {
      if (oldonload) {
        oldonload();
      }
      func();
    }
  }
}

And then put a call to addLoadEvent on your page and reference a function the sets the focus to you desired textbox.

Simply write autofocus in the textfield. This is simple and it works like this:

 <input name="abc" autofocus></input>

Hope this helps.

How do you automatically set the focus to a textbox when a web page loads?

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