I need to create a form element

<input disabled type="text" value="smth" />

which is disabled by default. It enables when onmouseover occures.

onmouseover="this.disabled=false;"

And is disabled by onmouseout

onmouseout="this.disabled=true;"

What I need is to check the following. If the <input> is focused then it shouldn't be disabled.

And if the form element loses focus it disables.

Please help me to complete the events.

<input disabled type="text" value="smth" onmouseover="this.disabled=false;" onfocus="???" onblur="???" onmouseout="if(???){this.disabled=true;}" />