c = 0;
          var pictureWindow;
         
         function open_main(pfad,winname,breite,hoehe) {
         
          var options = "width="+ breite + ",height=" + hoehe + ",scrollbars=yes,status=yes,resizable=1,location=no,toolbar=no";
          pictureWindow = window.open(pfad,winname,options);
          
         if ((navigator.appName == "Netscape") && (navigator.appVersion.charAt(0) !="2") && (navigator.appVersion.substring(0,5) != "4.0b1"))
             ok = true;
          else ok = false;
         
         if (ok)
             {
         pictureWindow.focus();
          }
         }
         
         	
           
            Normal5 = new Image(); 
            Normal5.src = "../images/home1.gif"; 
            Highlight5 = new Image(); 
            Highlight5.src = "../images/home4.gif"; 
         
         		Normal6 = new Image(); 
           Normal6.src = "../images/welcome1.gif"; 
           Highlight6 = new Image(); 
           Highlight6.src = "../images/welcome4.gif";
         
         		Normal7 = new Image(); 
           Normal7.src = "../images/mes1.gif"; 
           Highlight7 = new Image(); 
           Highlight7.src = "../images/mes4.gif";
         
         		Normal8 = new Image(); 
           Normal8.src = "../images/hrm1.gif"; 
           Highlight8= new Image(); 
           Highlight8.src = "../images/hrm4.gif";
         	
         	Normal9= new Image(); 
           Normal9.src = "../images/form2.gif"; 
           Highlight9= new Image(); 
           Highlight9.src = "../images/form3.gif";
         	
         		Normal10= new Image(); 
           Normal10.src = "../images/projects1.gif"; 
           Highlight10= new Image(); 
           Highlight10.src = "../images/projects4.gif";
         	
         	
         		Normal11= new Image(); 
           Normal11.src = "../images/report1.gif"; 
           Highlight11= new Image(); 
           Highlight11.src = "../images/report4.gif";
         	
         	
         			
         		Normal12= new Image(); 
           Normal12.src = "../images/faq1.gif"; 
           Highlight12= new Image(); 
           Highlight12.src = "../images/faq4.gif";
         	
         	
         		Normal13= new Image(); 
           Normal13.src = "../images/guest1.gif"; 
           Highlight13= new Image(); 
           Highlight13.src = "../images/guest4.gif";
         	
           function Bildwechsel(Bildnr,Bildobjekt)
            {
            window.document.images[Bildnr].src = Bildobjekt.src;
            }
            function pruefen() {

var email = document.forms[0].email.value;


if(email == "") {
alert("Please fill in your e mail adress");
document.forms[0].email.focus();return false;
}
if(document.forms[0].email.value.indexOf('@') == -1) {
alert("e-mail without @?");
document.forms[0].email.focus();return false;
}
}