function AddColourItemToCart(newurl)
{

var returnval = window.location.href;
  if(newurl != ''){
      var qty = document.getElementById('txtqty').value;
     var chosencolour = document.getElementById('colourchoice').value;
      if(chosencolour == 'Please select Colour...'){
          alert('Please select a colour before adding this item to the shopping cart!');
           return returnval;
       }
      else{
          returnval = newurl + "&colour=" + document.getElementById('colourchoice').value + "&qty=" + qty;
          return returnval;
     }
  }

alert(' Invalid selection! \n\nUnable to add this item to the shopping cart.');
return returnval;
}

function AddItemToCart(pdID)
{

var returnval = window.location.href;
  if(pdID != ''){
      var qty = 1;//document.getElementById('txtqty').value;
      var addurl = "cart.php?action=add&p=" + pdID;
          returnval = addurl +  "&qty=" + qty;
   }
   //alert(returnval);
return returnval;
}