function popUp(URL) {
day = new Date();
id = day.getTime();
eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=1,location=0,statusbar=1,menubar=0,resizable=0,width=500,height=800,left = 262,top = -16');");
}

document.write('<input type=button value="Read Reviews" onClick="javascript:popUp(\'reviewsRead.php?game='+game+'\')">');
document.write('<input type=button value="Write A Review" onClick="javascript:popUp(\'reviewsSubmit.php?game='+game+'\')">');