/*****************************************/
/*       Created by Piotr Kaluzynski     */
/*              Prostin                  */
/*       www.prostin.w.inds.pl           */
/*       email: prostin@inds.pl          */
/*****************************************/

function czyIE6 () {
   var userAgent = navigator.userAgent;
      
   var isIE = userAgent.indexOf ("compatible") > -1 && userAgent.indexOf("MSIE");
   var czyIE6 = false;
   
   if (isIE) {
      var reIE = new RegExp ("MSIE (\\d+\\.\\d+);");
      reIE.test (userAgent);
      var ieVer = parseFloat (RegExp["$1"]);
/* Jesli by sie okazalo ze IE 7.0 tez ma z tym problem to wystarczy zmienic nr versji */      
      czyIE6 = ieVer <= 6.0;
   }
   return czyIE6;
}

function czyIE () {
   var userAgent = navigator.userAgent;
      
   var isIE = userAgent.indexOf ("compatible") > -1 && userAgent.indexOf("MSIE");
   var czyIE = false;
   
   if (isIE) {   
      czyIE = true;
   }
   return czyIE;
}

/* Wykrywanie przegladarki OPERY */
function czyOpera () {
   var userAgent = navigator.userAgent;
   var fAppVersion = parseFloat (navigator.appVersion);

   var IsOpera = userAgent.indexOf ("Opera") > -1;
   var czyMinOpera9 = false;         
         
   if (IsOpera) {
      var fOperaVersion;
      if (navigator.appName == "Opera") {
         fOperaVersion = fAppVersion;
      } else {
         var reOperaVersion = new RegExp ("Opera (\\d+\\.\\d+)");
         reOperaVersion.test (sUserAgent);
         rOperaVersion = parseFloat (RegExp["$1"]);
      }
      czyMinOpera9 = fOperaVersion >= 9;
      }
   return czyMinOpera9;
}

function rollOverMenu (menuID) {
   var menu;
   if (menu = document.getElementById(menuID)) {
      menu.style.display = (menu.style.display == "none") ? "block" : "none";
   }
}

function overImage (img) {
   img.src = 'img/wyslij_prosbe_on.jpg';
   img.style.cursor = 'pointer';
}

function outImage (img) {
   img.src = 'img/wyslij_prosbe.jpg';
   img.style.cursor = 'default';
}

function overImageBG (img, imgSrc) {
   img.style.backgroundImage = 'url(' + imgSrc + ')';
   img.style.cursor = 'pointer';
}

function outImageBG (img, imgSrc) {
   img.style.backgroundImage = 'url(' + imgSrc + ')';
   img.style.cursor = 'default';
}

function changeImgOn (elem, imgElem, imgSrc) {
   imgElem.src = imgSrc;
   elem.style.cursor = 'pointer';
}

function changeImgOff (elem, imgElem, imgSrc) {
   imgElem.src = imgSrc;
   elem.style.cursor = 'default';
}