function correctPNG() // correctly handle PNG transparency in Win IE 5.5 & 6.
{
   var arVersion = navigator.appVersion.split("MSIE")
   var version = parseFloat(arVersion[1])
   if ((version >= 5.5) && (document.body.filters)) 
   {
      for(var i=0; i<document.images.length; i++)
      {
         var img = document.images[i]
         var imgName = img.src.toUpperCase()
         if (imgName.substring(imgName.length-3, imgName.length) == "PNG")
         {
            var imgID = (img.id) ? "id='" + img.id + "' " : ""
            var imgClass = (img.className) ? "class='" + img.className + "' " : ""
            var imgTitle = (img.title) ? "title='" + img.title + "' " : "title='" + img.alt + "' "
            var imgStyle = "display:inline-block;" + img.style.cssText 
            if (img.align == "left") imgStyle = "float:left;" + imgStyle
            if (img.align == "right") imgStyle = "float:right;" + imgStyle
            if (img.parentElement.href) imgStyle = "cursor:hand;" + imgStyle
            var strNewHTML = "<span " + imgID + imgClass + imgTitle
            + " style=\"" + "width:" + img.width + "px; height:" + img.height + "px;" + imgStyle + ";"
            + "filter:progid:DXImageTransform.Microsoft.AlphaImageLoader"
            + "(src=\'" + img.src + "\', sizingMethod='scale');\"></span>" 
            img.outerHTML = strNewHTML
            i = i-1
         }
      }
   }    
}
if (navigator.appName=='Microsoft Internet Explorer') window.attachEvent("onload", correctPNG);

    function poprawPNG() {
        var divs = document.getElementsByTagName('DIV');
       
        for(var i=0; i<divs.length; i++) {

            var div = divs[i];
            var back = eval('div.currentStyle.backgroundImage');
            if(back.indexOf(".png") != -1) {
                div.style.backgroundImage = 'none';
                div.style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + back.substring(5, back.length-2) + "', sizingMethod='scale')";
            }           

        }
    }

    if(window.attachEvent) {
        window.attachEvent('onload', poprawPNG);
    }

	 
	 function chkFormKont() {


	objIn = document.getElementById("chkFormKont");

	if (objIn.imie.value == '') {alert("Proszę uzupełnić imię."); return false;}
	if (objIn.nazwisko.value == '') {alert("Proszę uzupełnić nazwisko."); return false;}
	if (objIn.telefon.value == '') {alert("Proszę uzupełnić telefon."); return false;}
	
	
	
if (objIn.email.value) {
reg = /^[a-zA-Z0-9]{1,30}@[a-zA-Z0-9]+(\.[a-zA-Z0-9]+)+$/;
wyn = objIn.email.value.match(reg);
 if (wyn == null) {
 alert("Podany adres e-mail jest niepoprawny.");
 objIn.email.focus();
 return false;
 }
else {
 return true;
 }
}
else  {
alert("Proszę uzupełnić adres e-mail");
return false;
}
} 
	 

function externalLinks() {
 if (!document.getElementsByTagName) return;
 var anchors = document.getElementsByTagName("a");
 for (var i=0; i<anchors.length; i++) {
   var anchor = anchors[i];
   if (anchor.getAttribute("href") &&
       anchor.getAttribute("rel") == "external")
     anchor.target = "_blank";
 }
}
window.onload = externalLinks;