helper to retrieve url params

inUrl.js

// Based off the work from https://github.com/mattpass
  _.mixin({
    inUrl: function(singleParam) {
        var allParams = _.map(location.search.slice(1).split('&'), function(currentParam) {
            return { 'Key': currentParam.split('=')[0],
                      'Value': decodeURIComponent(currentParam.split('=')[1]).replace(/\+/g,' '),
                      'Raw Value': currentParam.split('=')[1]
                    }
        });
        
        var paramKeys = _.pluck(allParams, 'Key');
        
        if (singleParam) {
            var idx = _.indexOf(paramKeys, singleParam, false);
            
            if (idx > -1) {                
                return allParams[idx]['Value'];
            } else {
                return false;
            }
        } else {
            return allParams;
        }
        
     }
  });
  
  _.inUrl(); // Retrieves all params as an Object Literal
  _.inUrl('param'); // If the param is the URL arguments it will return the value of the param or false if it's not part of the params.