// Support construction of dynamic PayPal args.
var blk1  = "https://www.paypal.com/cart/";
var blk1a = "add=1";
var blk1d = "display=1";
var blk2  = "&business=janie%40thebathspot.com";
var blk3  = "&item_name=";
var blk3n = "Test";
var blk4  = "&amount=";
var blk4a = "6.66";

var winpar = "width=600,height=400,scrollbars," +
             "location," +  // some users delete this
             "resizable,status";

function AddBoth (strn1, strn2, arg) {  // add to both fields
  AddStyle (strn1, "0");  // add to description
  AddPrice (strn2, arg);  // add to price
}

function AddPrice (strn, arg) {  // add to current price
var r1,r2,pos;
  r1 = blk4a * 1.0 + 0.005; // float 'em
  r2 = strn * 1.0;
  strn = escape (r1 + r2);  // add and put back to string
  pos = strn.indexOf ("."); // find decimal point
  blk4a = strn.substring (0, pos + 3);  // lop off extra
  if (arg != "0") CallPay ();
}

function AddStyle (strn, arg) {  // add to current description
  blk3n = blk3n + "%2C%20" + escape (strn);
  if (arg != "0") CallPay ();
}

function CallPay () { // call the PayPal shopping cart
  window.open (blk1 + blk1a + // open the cart window
               blk2 + blk3 + blk3n + blk4 + blk4a,
               "cartwin",
               winpar);
}

function CallView () { // call the PayPal shopping cart view
  window.open (blk1 + blk1d +  // open the PayPal cart window
               blk2,
               "cartwin",
               winpar);
}

function MakeBuy (obj1) {  //get form data for PayPal
var i,j,obj,temp,pick,pos;
var aray = new Array ();
  SetBoth("Sink", "0", "0"); // base description
  j = 0;
  for (i=1; i<2; i++) {    // get the dropdown stuff...
    obj = obj1.elements[i];     // The form element object
    pick = obj.selectedIndex;   // which option selected
    aray[j] = obj.options[pick].value;  // isolate it

    temp = aray[j];  // get any price values from data
    j = j + 1;       // bump array index

    pos  = temp.indexOf ("+$"); // is there an adjustment?  
    if (pos > 0) {AddPrice (temp.substring (pos + 2), "0");}
  }

  // plug in the price...
  obj1.elements[0].value = "$" + blk4a;

  AddStyle (aray.join (", "), "0");  // build desc
}

function SetBoth (strn1, strn2, arg) {  // set desc and value
  SetDesc  (strn1);
  SetPrice (strn2);
  if (arg != "0") CallPay ();
}

function SetDesc (strn) {  // set the desc field
  blk3n = escape (strn);
}

function SetPrice (strn) {  // set the current price
  blk4a = "0.00";
  AddPrice (strn, "0");
}