function DropDown(){

	this.Lists=new Array();

	this.Add=AddDropDownList;

	this.updateList=UpdateDropDownList;

	

}



function UpdateDropDownList(ID){

	var List=this.Lists[ID];

	var RelList=document.forms[List.FormName].elements[List.List2];

	var MainList=document.forms[List.FormName].elements[List.List1];

	var List1Value=MainList.options[MainList.selectedIndex].value;

	var PrevLength=RelList.length;

	if (List1Value.length>0){

		for(var i = RelList.options.length - 1; i > 0; i--) 

                      RelList.options[i] = null; // null out in reverse order (bug workarnd)

		for (var i=0;i<List.Items.length;i++){

			if(List.Items[i].Value==List1Value){

				for (var x=0;x<List.Items[i].Items.length;x++){

					var NewListOption = new Option(List.Items[i].Items[x].Name, List.Items[i].Items[x].Value, false, false);

	    			RelList.options[x] = NewListOption;

				}

				RelList.options[0].selected = true;

			}

		}

	}

}

var DropDownLists=new DropDown();



function DropDownList(_ID,_List1,_List2,_FormName){

	this.ID=_ID;

	this.List1=_List1;

	this.List2=_List2;

	this.FormName=_FormName;

	this.Items=new Array();

	this.Add=AddListItem;

}

function ListItem (_Name,_Value){

	this.Name=_Name;

	this.Value=_Value;

	this.Items=new Array();

	this.Add=AddListItem;

}

function AddListItem(Obj){

	this.Items[this.Items.length]=Obj;

}

function AddDropDownList(Obj){

	this.Lists[this.Lists.length]=Obj;

}



function updateList(obj) {

	var cid2 = obj.options[obj.selectedIndex].value;

	if (cid2 != '') {

		url = 'c-product-select-header.cfm?';

		url = url + 'cid=' + cid;

		url = url + '&cid2=' + cid2;	

		window.location.href = url;

	}

}



function showProducts(obj) {

	var cid = obj.options[obj.selectedIndex].value;

	if (cid != '') {

		window.top.frames['bottom'].loading_on();

		document.forms['productselect'].submit()

	}

}