javascript - what do i need to open this in a popup or new window? -

i'm making bookmarklet website, , have:

<a href="javascript:location.href='http://website.com/compartir_link.php?url='+encodeuricomponent(location.href)" >save this</a> 

wich works fine, problem when try open in new tab: it's when try save: about:blank (in firefox)

and want able without loosing current video, that's why thouhgt poput, funcionally target="_blank" work me,

any suggestion? thank mucho!

pd: link saved bookmark in browser (maybe in other webistes), facebook's bookmarklet/sharer

edit

after replies have /js/file.js

jquery("body").ready(function(){ jquery(".keep_btn").click(function(event) {     event.preventdefault();     if(this.href=""){         this.href=document.url;      }     window.open("http://website.com/api/public/compartir_link.php?url="+this.href,'about keep', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=1,width=450,height=400'); }); 

});

and use in iframe containg:

<a class="keep_btn" href="#" style="background-color:red;color:white;">keeps</a> 

which works need (in case using in external website)

but how can use in regular can save browser?

my best regards

javascript call...

from link:

<a href="#" onclick="openit();return true">click here open</a> 

from button in form:

<input type="button" value="open window" onclick="openit()" />   function openit() {     w=window.open(linkurl, reportname, "resizable=yes, directories=no,location=no,menubar=no,status=no,titlebar=no,toolbar=no,top=50,height=600, width=900"); }