var pnn=(document.layers)?true:false;
var pn6=(navigator.vendor == ("Netscape6") || navigator.product == ("Gecko"));
var pie=false;
var pop=false;
if (document.all){ if (navigator.userAgent.search('Opera')>=0){ pie=false; pop=true;} else {pie=true; pop=false;}}

 function loadpic() {

	var attachement = document.forms['attach'].elements['plik'].value;
	var plik_arr = attachement.split('\\');
	var plik=plik_arr.length-1;
	var plik_arr2=attachement.split('\.');
	var roz=plik_arr2.length-1;
	var ext = plik_arr2[roz];

	if(ext != "jpg" && ext != "jpeg" && ext != "JPG" && ext != "JPEG" && ext != "gif" && ext != "png" && ext!="bmp" && ext!="BMP"
	&& ext!="txt"&& ext!="rtf"&& ext!="doc"
	&& ext!="TXT"&& ext!="RTF"&& ext!="DOC"
	) {
		 alert("Formularz akceptuje rozszerzenia:\n\ngraficzne: JPG, GIF, BMP lub PNG \ntekstowe: DOC, RTF, TXT                             ");
		 //document.forms['attach'].elements['attachement_'+i].value="";
		 return 0;
	}//if(ext != "jpg" && ext != "gif" && ext != "png")

	document.getElementById('ladowanie').style.visibility="visible";
	document.getElementById('ladowanie').style.display="block";

 	setTimeout("document.forms['attach'].submit()", 300);
 }