// finds a good spot on the screen to position the new window

function windowpos() {

    var x;

    var y;

    if (window.screenLeft) {  //IE

         x = window.screenLeft + 10 + Math.floor(Math.random()*41);

         y = window.screenTop + 10 + Math.floor(Math.random()*41);

         y = y - 100;

    } else if (window.screenX) {

         x = window.screenX + 10 + Math.floor(Math.random()*41);

         y = window.screenY + 10 + Math.floor(Math.random()*41);

    } else {

         x = 10 + Math.floor(Math.random()*41);

         y = 10 + Math.floor(Math.random()*41);

    }

    var pos = ",left="+x+",top="+y+",";

    //alert(pos);

    return pos;

}



function focus(win) {

  try {

     if (win) {win.focus();}

  } catch (e) {



  }

}


function base_href() {

 var b = document.getElementsByTagName('base');

 if (b && b[0] && b[0].href) {

   return b[0].href;

 }

 return '';

}



/// used for new window

function new_window(url) {

  nw = window.open(url, "_blank", 'width=800,height=650,directories=yes,toolbar=yes,location=yes,status=yes,menubar=yes,scrollbars=yes,resizable=yes'+windowpos());

  focus(nw);

  return false;

}



/// used for pop ups

function popup(url) {

  nw = window.open(url,'_blank', 'width=800,height=550,resizable=yes,menubar=yes,location=yes,toolbar=yes,scrollbars=yes'+windowpos());

  focus(nw);

  return false;

}


/// used for print pop ups

function printpop(url) {

  nw = window.open(url, '_blank', 'width=650,height=500,resizable=yes,location=yes,toolbar=yes,menubar=yes,scrollbars=yes'+windowpos());

  focus(nw);

  return false;

}


function print_popup() {

    //register_click_a(this);

    return printpop(this.href);

}


function std_popup() {

    //register_click_a(this);

    return popup(this.href);

}



function std_newwindow() {

    //register_click_a(this);

    return new_window(this.href);

}



// turns all database links into popup windows

// and PDF links to new windows



function rewrite_links() {    

    var links = document.getElementsByTagName('a');

    for (var x = 0;x < links.length; x++) {

        a = links[x];

        if (!a.href) {continue;}

        if      (a.className.indexOf('print') > -1 && a.className.indexOf('popup')) { a.onclick = print_popup; }

        else if (a.className.indexOf('popup') > -1) { a.onclick = std_popup; }

        else if (a.className.indexOf('newwin') > -1) { a.onclick = std_newwindow; }

    }

}