var browsertype="unknown";
    if ((navigator.appName == "Netscape") && (navigator.userAgent.indexOf("Opera") == -1) && (parseInt(navigator.appVersion)>=3))
      browsertype="netscape";
    if ((navigator.appName == "Netscape")&& (navigator.userAgent.indexOf("Opera") != -1))
      browsertype="opera";
    if (navigator.userAgent.indexOf("MSIE 3") != -1)
      browsertype="msie3";
    if (navigator.userAgent.indexOf("MSIE 4") != -1)
      browsertype="msie4";
    if (navigator.userAgent.indexOf("MSIE 5") != -1)
      browsertype="msie4";

    function search(){
      var urlstring=new makearray(32);
      urlstring[0]="http://www.google.nl/search?q=";
      urlstring[1]="http://search.msn.nl/results.aspx?q=";
      urlstring[2]="http://nl.altavista.com/cgi-bin/query?what=web&pg=q&q=";
      urlstring[3]="http://www.vindex.nl/vindexsearchresults.jspx?search_for=";
      urlstring[4]="http://search.ilse.nl/searchresults.jspx?search_for=";
      urlstring[5]="http://www.zoekzorg.nl/search/search.html?search=";
      urlstring[6]="http://spsearch.ilse.nl/?in=";
      urlstring[7]="http://www.lycos.co.uk/cgi-bin/pursuit?cat=lycos&query=";
      urlstring[8]="http://www.hotbot.com/index.php?query=";
      urlstring[9]="http://search.yahoo.com/search?p=";
      urlstring[10]="http://search.excite.com/search.gw?trace=a&search=";
      urlstring[11]="http://www.euroseek.com/query?query=";
      urlstring[12]="http://www.ask.com/web?q=";
      var count=0;
      var arguments=document.seform.query.value;
     
      if(arguments=="U hebt nog geen woorden ingevoerd..."){
        alert("");
        return;
      }
      for(i=0; i<document.seform.seselect.length; i++){
        if (document.seform.seselect.options[i].selected==true)
        count++;
      }
      if(count>4){
        if(confirm("U hebt minstens 5 zoekmachines geselecteerd\nelke zoekmachine zal een nieuw venster openen in uw browser\nwilt u doorgaan ?")==false)
          return;
      }
      
      count=0;
      
      for(i=0; i<arguments.length; i++){
        if (arguments.charAt(i)!=" ")
        count++;
      }
      if(count==0) {
        alert("U hebt nog geen woorden ingevoerd...");
        return;
      }
      
      arguments=escape(arguments);
      
      for(i=0; i<arguments.length; i++){
        if(arguments.substring(i,i+1) == "+")
          arguments = arguments.substring(0,i) + "+" + arguments.substring(i+1,arguments.length);
      }
      for(i=0; i<arguments.length; i++){
        if (arguments.substring(i,i+3) == " ")
          arguments = arguments.substring(0,i) + "+" + arguments.substring(i+3,arguments.length);
      }
      for(i=0; i<document.seform.seselect.length; i++){
        if(document.seform.seselect.options[i].selected==true){
          if((browsertype == "msie3") || (browsertype == "msie4")){
            urlstring[i]+=arguments;
            window.open(urlstring[i],"","toolbar=yes,status=yes,menubar=yes,scrollbars=yes,resizable=yes,copyhistory=no,width=580,height=190");
          }
          else{
            urlstring[i]+=arguments;
            window.open(urlstring[i]);
          }
        }
      }
    }
    
    function makearray(size){
      this.length=size;
      for(i=0; i<size; i++)
        this[i]='';
      return this;
    }

    function write_form(){
      /* if (browsertype == "unknown"){
           document.write('<IMG SRC="images/error.gif" WIDTH="301" HEIGHT="223" BORDER="0" HSPACE="0" VSPACE="10">');
           return;
         }
      */
      document.write('<FORM><INPUT TYPE=HIDDEN VALUE="dummy"></FORM><FORM NAME="seform" id="seform" onSubmit="return false;">');
      document.write('zoek naar:<BR>');
      if (browsertype == "msie3"){
       document.write('<INPUT TYPE="TEXT" NAME="query" SIZE="50" MAXLENGTH="50"><INPUT TYPE="HIDDEN" VALUE="dummy"><br>');
       document.write('zoek met:<BR>');
       document.write('<SELECT NAME="seselect" MULTIPLE SIZE="4">');
      }
      if (browsertype == "msie4"){
       document.write('<INPUT TYPE="TEXT" NAME="query" SIZE="20" MAXLENGTH="50"><INPUT TYPE="HIDDEN" VALUE="dummy"><br>');
       document.write('zoek met:<BR>');
       document.write('<SELECT NAME="seselect" MULTIPLE SIZE="4">');
      }
      if ((browsertype == "netscape") || (browsertype == "opera")){
       document.write('<INPUT TYPE="TEXT" NAME="query" SIZE="20" MAXLENGTH="50"><INPUT TYPE="HIDDEN" VALUE="dummy"><br>');
       document.write('zoek met:<BR>');
       document.write('<SELECT NAME="seselect" MULTIPLE SIZE="4">');
      }
      if (browsertype == "unknown"){
       document.write('<INPUT TYPE="TEXT" NAME="query" SIZE="20" MAXLENGTH="50"><INPUT TYPE="HIDDEN" VALUE="dummy"><br>');
       document.write('zoek met:<BR>');
       document.write('<SELECT NAME="seselect" MULTIPLE SIZE="4">');
      }

      document.write('<OPTION SELECTED VALUE="0">Google (NL)</OPTION>');
      document.write('<OPTION VALUE="1">MSN (NL)</OPTION>');
      document.write('<OPTION VALUE="2">Altavista (NL)</OPTION>');
      document.write('<OPTION VALUE="3">Vindex (NL)</OPTION>');
      document.write('<OPTION VALUE="4">Ilse (NL)</OPTION>');
      document.write('<OPTION VALUE="5">Zoekzorg (NL)</OPTION>');
      document.write('<OPTION VALUE="6">Startpagina (NL)</OPTION>');
      document.write('<OPTION VALUE="7">Lycos</OPTION>');
      document.write('<OPTION VALUE="8">Hotbot</OPTION>');
      document.write('<OPTION VALUE="9">Yahoo</OPTION>');
      document.write('<OPTION VALUE="10">Excite</OPTION>');
      document.write('<OPTION VALUE="11">Euroseek</OPTION>');
      document.write('<OPTION VALUE="12">Ask.com</OPTION>');
      document.write('</SELECT><br>');
      document.write('<INPUT VALUE="Verstuur vraag" TYPE="BUTTON" ONCLICK="search()">');
      document.write('</FORM><FORM><INPUT TYPE=HIDDEN VALUE="dummy"></FORM>');
    }

    function formfocus(){
      document.seform.query.focus()
    }
    
    var theForm = document.forms['aspnetForm'];
    if (!theForm){
      theForm = document.aspnetForm;
    }