searchParams

/**
 * functions for altering url params
 * @returns {searchParams}
 */

var searchParams = function(){};


searchParams.prototype.find = function( str, search ){
    if(str.indexOf(search) > 0){
        return true;
    }else{
        return false;
    }
};

searchParams.prototype.updateQueryStringParameter = function(uri, key, value) {
    var re = new RegExp("([?&])" + key + "=.*?(&|$)", "i");
    var separator = uri.indexOf('?') !== -1 ? "&" : "?";
    if (uri.match(re)) {
      return uri.replace(re, '$1' + key + "=" + value + '$2');
    }
    else {
      return uri + separator + key + "=" + value;
    }
};

searchParams.prototype.getQueryVariable = function(variable){
   var query = window.location.search.substring(1);
   var vars = query.split("&");
   for (var i=0;i<vars.length;i++) {
           var pair = vars[i].split("=");
           if(pair[0] === variable){return pair[1];}
   }
   return(false);
};