IMPLEMENTATION DE HASHTABLE

function HashTable(){

}
HashTable.prototype={
    put: function(key, value) {
      return this[key] = value;
    },
    get: function(key) {
      if (this[key] !== Object.prototype[key])
      return this[key];
    },
    remove: function(key) {
      delete this[key];
    },
    keys:function(){
	var a=[];
    	for(var b in this){
        	if(this.hasOwnProperty(b))
            	a.push(b);
    	}
    	return a;
     },
    values: function() {
	var a=[];
	for(var b in this){
		if(this.hasOwnProperty(b)) a.push(this[b])
	}
	return a;		
    }
}
/** Utilisation */
s=new HashTable();
s.put("key1","value1");
s.put("key2","value2");
s.put("key3","value3");
alert(s.get("key2"));
alert(s.keys());
alert(s.values());
s.remove("key2");
alert(s.keys());
alert(s.values());