function eRental_AddToBooking(prod_id)
{
    var message = '<form name="dialog" target="BackgroundFrame" onSubmit=""><input type="hidden" name="Product" value="'+prod_id+'"><input type="hidden" name="action" value="AddToBooking"><p>Please enter the quanity you wish to add</p><p><input name="QTY" value="1"></p><p><input type="submit" value="Okay" onClick="">&nbsp;&nbsp;<input type="button" value="Cancel" onClick="hideDialog()"></form>';
    showDialog('Add Item to Current Booking',message,'prompt');

}