remove smart quotes via javascript

I always have minor twinges that I am not typographically-morally upright enough to prefer "proper quotes" to "inch marks". 

But smart quote characters create more problems than they are worth. I used to run suspect text through the  Dan Hersam's Filter but I realized I should just take the basic code and put it more directly into my workflow. 

Here's the function I came up with, pass in the id of an input element and it will replace its contents with a safer, if less typographically pure, version.

function unsmartquote(id){

    var element = document.getElementById(id);

    var s = element.value;

    s = s.replace(/[\\u2018\\u2019]/g, "'");

    s = s.replace(/[\\u201C\\u201D]/g, '"');

    s = s.replace( /\\u2014/g, '--' );

    s = s.replace( /\\u2026/g, '...' );

    s = s.replace( /\\u00A9/g, '©' );

    s = s.replace( /\\u00AE/g, '®' );

    s = s.replace( /\\u2122/g, '^TM' );

    s = s.replace( /\\u00BC/g, '^1/4' );

    s = s.replace( /\\u00BD/g, '^1/2' );

    s = s.replace( /\\u00BE/g, '^3/4' );

    s = s.replace(/[\\u02DC|\\u00A0]/g, " ");

    element.value = s;

}

It took a little longer than I had expected to make this, I got bit by double slash for the unicode escape sequence merging into single slash by the time I was trying to copy and paste the code