function Hash(){

	this.length = 0;
	this.items = new Array();
	for (var i = 0; i < arguments.length; i += 2) {
		if (typeof(arguments[i + 1]) != 'undefined') {
			this.items[arguments[i]] = arguments[i + 1];
			this.length++;
		}
	}
   
	this.removeItem = function(in_key){

		var tmp_value;
		if (typeof(this.items[in_key]) != 'undefined') {
			this.length--;
			var tmp_value = this.items[in_key];
			delete this.items[in_key];
		}
	   
		return tmp_value;
	}

	this.getItem = function(in_key) {
		return this.items[in_key];
	}

	this.setItem = function(in_key, in_value){
	
		if (typeof(in_value) != 'undefined') {
			if (typeof(this.items[in_key]) == 'undefined') {
				this.length++;
			}

			this.items[in_key] = in_value;
		}
	   
		return in_value;
	}

	this.hasItem = function(in_key){
		return typeof(this.items[in_key]) != 'undefined';
	}
}

function loadSpeeds (item, speeds){

	var form = document.prodForm;
	
	var materialBox = undefined;
	var speedBox = undefined;
	
	if (form.os0){
		materialBox = form.os0; // pull the material box
	}
	if (form.os1){
		speedBox = form.os1; // pull the speed box.
	}
	
	if (materialBox.selectedIndex == 0){ // no size selected, don't do anything
		return;
	}

	var speedHash = speeds[item].getItem(materialBox.options[materialBox.selectedIndex].value);
	var selectedSpeed = 0;
	if ((speedHash) && (speedHash.length > 0)){
		if (speedBox.selectedIndex > 0){
			selectedSpeed = speedBox.options[speedBox.selectedIndex].value;
		}
		
		speedBox.options.length = 0; // clear the color box
		speedBox.options[0] = new Option("Choose One...", "0");
		speedBox.selectedIndex = 0;
		for (var d_id in speedHash.items){
			speedBox.options.length += 1;
			speedBox.options[speedBox.options.length - 1] = new Option(speedHash.getItem(d_id), d_id);

			if (d_id == selectedSpeed){
				speedBox.selectedIndex = speedBox.options.length - 1;
			}
		}
	}
	return;
}