해보고나면 별거아니다

<script type="text/javascript">

function openwindow() {

var url = "http://www.google.com";

   //새 창에 띄우기

window.open(url, "이름" ,"width=1000,height=800"); 

//$(location).attr('href', url); //지금창에 띄우기

}

</script>

<a style="text-decoration: underline; color: blue;" href= 'javascript:void(0);' onclick="openwindow()" >

새창 열기

</a>