There's a textarea, and I want to block a function when this focus is in this textarea,
is to make this function invalid, remove the focus and then make it effective again, how to achieve???
1 floor
In your function, you get the control of the current page focus by Document.activeelement, and you can tell if this textarea is out of the function.
2 floor
Upstairs, learning from the Meizz.
3 floor
To Meizz (Plum blossom Snow)
I was using
Document.activeElement.tagName.toLowerCase ()!= ' textarea '
To determine the textarea control, but there are multiple textarea on the page,
I just want to block this function in one of the textarea, how do I do???
More troublesome is another hidden textarea, in addition to the property is ReadOnly, other attributes and this textarea exactly the same, how to achieve?
4 floor
Using the Onfocus,onblur event as a function switch
<body>
<script language= "JavaScript" >
function Disablefun ()
{
Window.myfun = null;
}
function Enablefun ()
{
Window.myfun = function ()
{
showid.innerhtml + = "I ' m active<br>";
};
}
function Myfun ()
{
showid.innerhtml + = "I ' m active<br>";
}
</script>
<form method= "Get" name=search id=search target= "_blank" >
Triggers the Myfun function for each type of content <br>
<textarea name= "Txa" rows= "5" cols= "onkeydown=" if (myfun) myfun () "></textarea>
<br>
Each keystroke does not trigger the Myfun function (when focusing is not valid, when the focus is lost) <br>
<textarea name= "Txa" rows= "5" cols= "onfocus=" Disablefun () "onblur=" Enablefun () "onkeydown=" if (myfun) MYF Un () "></textarea>
</form>
<div id=showid>
</div>
</body>
