function popupWindow(url) {
  window.open(url,'popupWindow','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=yes,copyhistory=no,width=300,height=300,screenX=150,screenY=150,top=150,left=150')
}
//-->


function session_win() {
  window.open("/info_shopping_cart.php","info_shopping_cart","height=460,width=430,toolbar=no,statusbar=no,scrollbars=yes").focus();
}
function NewWindow(mypage,myname,w,h,scroll){
LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
TopPosition = (screen.height) ? (screen.height-h)/2 : 0;
settings =
'height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+',resizable'
win = window.open(mypage,myname,settings)
}