One Nice way to avoid this is to use target="_blank" within your Links anchor tag so that your Link open in new window.But why not add a little frill for open in a popup window.
Here,s an Example HTML code for any Links
<a href="http://djmix4u.blogspot.com">Krishnaa Zone</a>
What you have to do is ADD :
target="_blank" onclick="window.open(this.href, 'popupwindow', 'width=420, height=350, resizable=no, scrollbars=yes, menubar=no, toolbar=no, status=no'); return false;
After the closing double quotes enclosing the url of the original link, but before the > tag.So that result will be like this.
<a href="http://djmix4u.blogspot.com" onclick="window.open(this.href, 'popupwindow', 'width=420, height=350, resizable=no, scrollbars=yes, menubar=no, toolbar=no, status=no'); return false;" target="_blank">Krishnaa Zone</a>
Let me Explain all the elements one by one.
width=520, height=520 Defines the size of the popup window
resizable=no, scrollbars=yes, menubar=no, toolbar=no, status=no are optional attributes, you can change their values to yes or no according to your needs
For demo click on the Krishnaa Zone (above) accompanying this post.
the target="_blank" makes the link open in a new window
you can add the attributes top= and left= to define the position of the pop-up window
Here's an example:
target="_blank" onclick="window.open(this.href, 'popupwindow', 'width=420, height=350, resizable=no, scrollbars=yes, menubar=no, toolbar=no, status=no, top=20, left=20,'); return false;"