// Browserweiche 
var w3c = document.getElementById&&!document.all?1:0;
var msie = document.all?1:0;


function intro() {

 // Event-Listener fuer Doppelklick registrieren  

 if(w3c) { // DOM Level 2 kompatible Browser  
  var field = document.getElementById("dict");
  field.addEventListener("dblclick", fetchSel, true);
 }

 if(msie) { // MS Internet Explorer  
  var field = document.all.dict;
  field.ondblclick = fetchSel;
 }
}


function fetchSel() {

 // Selektierten Text in Variable speichern

 if(document.selection) {
  selected = document.selection.createRange().text;
  if(selected != "") {
   document.selection.empty();
  }
 }
 else if(window.getSelection) {
  selected = window.getSelection().toString();
  selected = selected.replace(/["!?;:,.]/g, "");
 }
 
 popup(selected);
}


function popup(selected) {

 // Deutsche Wikipedia
 var searchURL = "http://de.wikipedia.org/";
 var attr = "wiki/" + escape(selected);

 // Alternative: Deutsch-Englisches Woerterbuch
 // var searchURL = "http://dict.leo.org/";
 // var attr = "?search=" + escape(selected) + "&lang=en";

 // Parameter fuer das Popup-Fenster
 var param = "width=590,height=430";
 param += ",left=300,top=60";
 param += ",menubar=1";
 param += ",location=1";
 param += ",scrollbars=1";
 param += ",resizable=1";
 param += ",toolbar=1";
 param += ",status=0";

 if(selected != "") {
  // Popup oeffnen
  popWin = window.open(searchURL + attr,"s",param);
  // Popup in den Vordergrund schicken 
  popWin.focus();
 }
}