onclick open window and specific size

<a href="/index2.php?option=com_jumi&amp;fileid=3&amp;Itemid=11"
   onclick="window.open(this.href,'targetWindow',
                                   `toolbar=no,
                                    location=no,
                                    status=no,
                                    menubar=no,
                                    scrollbars=yes,
                                    resizable=yes,
                                    width=SomeSize,
                                    height=SomeSize`);
 return false;">Popup link</a>

Where width and height are pixels without units (width=400 not width=400px).

In most browsers it will not work if it is not written without line breaks, once the variables are setup have everything in one line:

<a href="/index2.php?option=com_jumi&amp;fileid=3&amp;Itemid=11" onclick="window.open(this.href,'targetWindow','toolbar=no,location=no,status=no,menubar=no,scrollbars=yes,resizable=yes,width=SomeSize,height=SomeSize'); return false;">Popup link</a> 

window.open('http://somelocation.com','mywin','width=500,height=500');

window.open ("http://www.javascript-coder.com",
"mywindow","menubar=1,resizable=1,width=350,height=250");

from

http://www.javascript-coder.com/window-popup/javascript-window-open.phtml

:]