var PostAction  = "https://www.paypal.com/cgi-bin/webscr?cmd=_xclick";
var PPBusID = "&business=trevormarr%40blueyonder.co.uk";
var ItmName = "";
var ItmNo = "";
var ImgURL = "&image_url=http://www.cs4u.biz/images/cs4ulogo.gif";
var NoShip = "&no_shipping=1";
var PayReturn = "";
var CancelReturn = "";
var NoNote = "&no_note=1";
var ItemQty = "&quantity=1";
var ItemAmt  = "&amount=0";
var CurCode = "&currency_code=GBP";
var EmailNo = "";
var winpar = "width=650,height=400,scrollbars," +
             "location,resizable,status";

function CallPay () {
var ppstr;
  ppstr = PostAction + PPBusID + ItmName + ItmNo + 
         ImgURL + NoShip + PayReturn + CancelReturn + NoNote + ItemQty +
         ItemAmt + CurCode + EmailNo;
  ClearAll ();
  window.open (ppstr, "paypal", winpar);
}

function ClearAll () {
	ItemAmt = "";
	ItmNo = "";
	ItmName = "";
	EmailNo = "";
	PayReturn = "";
	CancelReturn = "";
}

function Coder (strn) {
var	aray = new Array ();
	aray = strn.split (" ");
	return aray.join ("+");
}

function ReadForm (obj) {
	ItemAmt = "&amount=" + escape(Coder(obj.GrandTotal.value));
	ItmNo = "&item_number=" + escape(Coder(obj.RegName.value));
	ItmName = "&item_name=" + escape(Coder(obj.ItemName.value));
	EmailNo = "&custom=" + escape(Coder(obj.Email.value));
	PayReturn = "&return=" + escape(Coder(obj.PayReturn.value));
	CancelReturn = "&cancel_return=" + escape(Coder(obj.CancelReturn.value));
}