window.open problem with IE 7.0

Hi

my javascript code is working properly with 6.0 but it also working with IE 7.0. IN popup window some extra space is comming with 7.0. pls go through the code. pls let me give reply.

function showCalendar(ctrl) {
var dtnw = new Date();
wincalendar = window.open(“../common/calendar.jsp?a=” + (dtnw.getFullYear()) + “&m=” + dtnw.getMonth() + “&c=” + ctrl,”schedulecalendar”, “left=500;toolbar=no,directories=no,menubar=no,resizable=no,width=171,height=195”);
}