Disable and Enable a Text Box

I have a textbox and a checkbox.  As long as the checkbox is not checked the textbox should be disabled.  

Due to the 3rd party framework I am using, I can't just simply use the codebehind.  I will need to script this.  I have written this jquery script that disables OK, but will not enable when the box is checked.  Can someone help me with what I'm doing wrong.    

$(document).ready(function () {
        $('#CheckBox1').click(function () {
            if ($(this).is(":checked"))

            $("TextBox1").attr("disabled", "enabled");

                $("#TextBox1").attr("disabled", "disabled");


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Rainer JeschorCommented:
this should work:
 $(document).ready(function () {
         $('#CheckBox1').click(function () {
             if ($(this).is(":checked")) {
             } else {
                 $("#TextBox1").prop("disabled", true);

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Rainer JeschorCommented:
And I think its just a simple typo:
you missed the # for the ID selector in the first if case.
sherbug1015Author Commented:
Perfect.  Thanks.
This could also be another way
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