function buyNow(bus, item, price, quant)
{
    window.open('https://www.paypal.com/cgi-bin/webscr?cmd=_xclick&currency_code=AUD&business='+bus+'&item_name='+item+'&amount='+price+'&quantity='+quant,
                'mywin','left=20,top=20,width=780,height=550,toolbar=0,resizable=1');
}