// flash plug-in 
var agt = navigator.userAgent.toLowerCase();
var ie = (agt.indexOf("msie") != -1);
var ns = (navigator.appName.indexOf("Netscape") != -1) || (navigator.appName.indexOf("Opera") != -1);
var win = ((agt.indexOf("win")!=-1) || (agt.indexOf("32bit")!=-1));
var mac = (agt.indexOf("mac")!=-1);
var rqversion = 5; // požadovaná verze pluginu
var result = false;
if (ie && win) {
  document.writeln('<script type="text/vbscript">');
  document.writeln(' On Error Resume Next');
  document.writeln(' result = IsObject(CreateObject("ShockwaveFlash.ShockwaveFlash.'+rqversion+'"))');
  document.writeln('</script>');
}
if (ns || !win) {
  if (navigator.mimeTypes && navigator.mimeTypes["application/x-shockwave-flash"] && navigator.mimeTypes["application/x-shockwave-flash"].enabledPlugin) {
    if (navigator.plugins && navigator.plugins["Shockwave Flash"] && (versionIndex = navigator.plugins["Shockwave Flash"].description.indexOf(".")) != - 1) {
      var versionString = navigator.plugins["Shockwave Flash"].description.substring(versionIndex-1,versionIndex);
      versionIndex = parseInt( versionString );
      if ( versionIndex >= rqversion )
        result = true;
}}}

// fast navigation
function reloadPage()  {
    i = document.form_nav.site.selectedIndex
    vyber = document.form_nav.site.options[i].value
    if(vyber) location.replace(vyber + ".php")
}

// form search
function isSearchEmpty(f) {
    i = f.search_area.selectedIndex;
    if(f.search_area.options[i].value == 0) {
        return false;
    }
    else if(f.search_area.options[i].value && f.query_string.value == "") {
        alert("Geben Sie einen Suchbegriff ein");
        f.query_string.focus();
        return false;
    }
    else if(f.search_area.options[i].value && f.query_string.value.length < 3) {
        alert("Der Suchbegriff muss mindestens 3 Zeichen lang sein!");
        f.query_string.focus();
        return false;      
    }
    else return true
}
        
// change images
function changeImage(nest,layer,imgName,imgObj) {
    if (nest!='') nest = 'document.'+nest+'.'
    if (layer!='') layer = 'document.'+layer+'.' 
		if (document.layers) eval(nest+layer+'document.images["'+imgName+'"].src = '+imgObj+'.src')
		else document.images[imgName].src = eval(imgObj+".src")
}

// open new window
function newWin1(name,w,h,l,t,scroll,resize) { 
    window.open("",name,'toolbar=0,location=0,scrollbars=' + scroll + ',resizable=' + resize + ',width=' + w + ',height=' + h + ',left=' + l + ',top=' + t); 
}
function newWin2(page,name,w,h,l,t,scroll,resize) { 
    window.open(page,name,'toolbar=0,location=0,scrollbars=' + scroll + ',resizable=' + resize + ',width=' + w + ',height=' + h + ',left=' + l + ',top=' + t); 
}