Parameterizes a string

parameterize.js

function parameterize(value) {
    // A simple function that parameterizes a string.
    // Example: "This is a title" == "this-is-a-title"
    
    if (typeof value === 'string' || value) {
        var output = value.replace(/[^a-zA-Z0-9\s]/g,"");
        output = output.toLowerCase();
        return output.replace(/\s/g,'-');
    } else { 
        return false;
    }     
}