function Hashtable() {
this.put=Hashtable_put;
this.get=Hashtable_get;
this.getNext=Hashtable_getNext;
this.table=new Array();
this.size=0;
this.index=0;
}
function Hashtable_put(key,value) {
this.table[this.size]=new Hashtable_node(key,value);
++this.size;
}
function Hashtable_get(key){

  for(this.index=0;this.index<this.size;this.index++) {
    if(this.table[this.index].key==key)
      return this.table[this.index].value;
  }
  return null;
}
function Hashtable_getNext(key){

  for(this.index++;this.index<this.size;this.index++) {
    if(this.table[this.index].key==key)
      return this.table[this.index].value;
  }
  return null;
}

function Hashtable_node(key,value) {
this.value=value;
this.key=key;
}
function node(name,nbr) {
  this.name=name; 
  this.nbr=nbr;
}