Backslashes getting stripped out of my regex

Question

I am trying to automate some find/replace routines in dreamweaver using javascript.
dreamweaver.setUpFindReplace({ 
        searchString: '<table width="\d+', 
        replaceString: '<table width="100%"', 
        searchWhat: "document", 
        searchSource: true, 
        useRegularExpressions: true 
    dreamweaver.replaceAll();
This query gets passed as: <table width="d+
Problem: when the query string is passed to the setUpFindReplace object, the backslashes get stripped out. Backslashes are key to regular expressions. How do I get them passed from JavaScript to Dreamweaver?
I am using CS6
Ben

Answer 1

I am still looking for a smart person to answer, but in case anyone else is having same problem I found a work-around.
I think Java uses the backslash as an escape character and so it is not passing it to Dreamweaver. The only thing I found that works is to set a variable with the regex text, and escaping all the backslashes, then passing the variable to Dreamweaver.
var myFind = '<table width="\\d+"'
dreamweaver.setUpFindReplace({
        searchString: myFind
        replaceString: '<table width="100%"',
        searchWhat: "document",
        searchSource: true,
        useRegularExpressions: true
    dreamweaver.replaceAll();
Note: double backslash \\d+ and single quotes ' " " ' used because query string contains double quotes.
I tried escaping the double quotes in the search string \" but this did not work for the same reason.
Ben (not a Java developer)