function mail(winurl) {    
window.open(winurl,"recommend",'directories=0,fullscreen=0,location=0, menubar=0,resizable=0,scrollbars=0,status=0,toolbar=0,width=300,height=198,top=200,left=250');
}
function guest(winurl) {    
window.open(winurl,"guest",'directories=0,fullscreen=0,location=0, menubar=0,resizable=0,scrollbars=0,status=0,toolbar=0,width=450,height=280,top=200,left=250');
}
function buy_it(winurl) {    
window.open(winurl,"buy_it",'directories=0,fullscreen=0,location=0, menubar=0,resizable=0,scrollbars=0,status=0,toolbar=0,width=500,height=390,top=200,left=250');
}
function buy_userlist(winurl) {    
window.open(winurl,"buy_userlist",'directories=0,fullscreen=0,location=0, menubar=0,resizable=0,scrollbars=1,status=0,toolbar=0,width=780,height=390,top=200,left=250');
}
function buy_sfz(winurl) {    
window.open(winurl,"buy_sfz",'directories=0,fullscreen=0,location=0, menubar=0,resizable=0,scrollbars=0,status=0,toolbar=0,width=350,height=250,top=200,left=250');
}