How to enable a linkbutton server control using javascript?

I have a linkbutton server control in my page whose Enabled attribute is initially set to "false". When a text box's text changes I would like to enable the linkbutton. I tried the following but it does not work. Could you let me know 开发者_StackOverflowif i am missing something.

function TextBox_TextChanged()
{
    var control = $get("<%= linkButtonSave.ClientID%>");
    if(control != null)
        control.enabled = true;
}

Thanks

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try

control.disabled = false;

You're dealing with HTML controls, not server side controls.

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You will have to use an id selector. And remove the disabled attribute using .removeAttr(). I assume you are using $get as an alias name for $.

$get("#<%= linkButtonSave.ClientID%>").removeAttr("disabled");