$(document).ready(init);

function init() {
 fixPopupLinks();
}

function fixPopupLinks() {
 $("a.popup").each(function() {
   this.onclick = function() {
    popUp($(this).attr("href"));
    pop.focus();
    return false;
   }
  }
 );
 
}

function popUp(winURL) {
 pop=window.open(winURL,"popup","width=780,height=500,scrollbars=yes,toolbar=yes");
}