Add delimiters to text in inputs (J-Query)

function AddDelimiter(input, textbox, location, delimiter) {
    //Iterate until all the delimiters are placed in the textbox
    for (var delimCount = 0; delimCount <= location.length; delimCount++) {
        for (var inputCharCount = 0; inputCharCount <= input.length; inputCharCount++) {

            //Check for the actual position of the delimiter
            if (inputCharCount == location[delimCount]) {

                //Confirm that the delimiter is not already present in that position
                if (input.substring(inputCharCount, inputCharCount + 1) != delimiter) {
                    input = input.substring(0, inputCharCount) + delimiter + input.substring(inputCharCount, input.length);
                }
            }
        }
    }
    textbox.value = input;
}