How to Open New Window in Java script

<div dir="ltr" style="text-align: left;" trbidi="on">
<script type="text/javascript">
// Popup window code
function newPopup(url) {
popupWindow = window.open(
"http://www.developmentbucket.com",'popUpWindow','height=500,width=500,left=10,top=10,resizable=yes,scrollbars=yes,toolbar=yes,menubar=no,
location=no,directories=no,status=yes')
}
</script>
</div>