function formatuj_liczbe(n){
	/*
	n = Math.round(n * 100) / 100;
	//n = (n + 0.001) + '';
	n = (n + 0.001) + '';
	n = (n - 0.001) + '';
	//alert("n: " + n);
	return n.substring(0, n.indexOf('.') + 3);
	*/
	//num = 930.9805;
	//result = n.toFixed(2);
	return n.toFixed(2);
}

function migajacy_text(id, k1, t1, k2, t2){
  if (document.getElementById){
    document.getElementById(id).style.color = k1;
	setTimeout('migajacy_text("' +  id + '","' + k2 + '",' + t2 + ',"' + k1 + '",' + t1 + ')', t1);
  }else if (document.all){
    document.all[id].style.color = k1;
	setTimeout('migajacy_text("' +  id + '","' + k2 + '",' + t2 + ',"' + k1 + '",' + t1 + ')', t1);
  }
}

function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}

function MM_swapImgRestore(){ //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages(){ //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d){ //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage(){ //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function pop_new_window(nazwa_pliku, zmienna, id){
	var plik = nazwa_pliku + "?" + zmienna + "=" + id;
	var Win = window.open(plik, "newsletter","menubar=0,location=0,status=0,toolbar=0,directories=0,alwaysRaised=1,scrollbars=1,titlebar=0,resizable=0");
}

		
function pop_zdjecie(foto){
	var plik = "pop_zdjecie.php?foto="+foto;
	var Win = window.open(plik, "detal","menubar=0,location=0,status=0,toolbar=0,directories=0,alwaysRaised=1,scrollbars=0,titlebar=0,resizable=0");
}

function popraw_okno(window_width, window_height) {
	window.resizeTo(window_width + 70,window_height + 170, 'okno');
	var szerokosc = screen.width/2 - window_width/2;
	var wysokosc = screen.height/2 - window_height/2;
	window.moveTo(szerokosc,wysokosc);
}

function przytnij_text(text, max_znakow){
	if (text.length > max_znakow){
		text = text.substring(0, max_znakow);
	}
	return text;
}

function tylko_cyfry(nazwa_pola, max_znakow) {
    document.getElementById(nazwa_pola).value = document.getElementById(nazwa_pola).value.replace(/[^0-9]/g,"");
	if(max_znakow.length > 0){
		document.getElementById(nazwa_pola).value = przytnij_text(document.getElementById(nazwa_pola).value, max_znakow);
	}
}

function usun_biale_znaki(ciag){
	ciag = ciag.replace(/\r/g, " ");
  	ciag = ciag.replace(/[^ A-Za-z0-9`~!@#\$%\^&\*\(\)-_=\+\\\|\]\[\}\{'";:\?\/\.>,<]/g, "");
	ciag = ciag.replace(/'/g, "");
	ciag = ciag.replace(/ +/g, " ");  
	ciag = ciag.replace(/^\s/g, "");
	ciag = ciag.replace(/\s$/g, "");	
	return ciag;
}

function wylicz_wartosc(pole_baza, pole_zmiana, pole_vat, opcja){
	if(opcja == 'brutto'){
		document.getElementById(pole_zmiana).value = formatuj_liczbe(document.getElementById(pole_baza).value * (1 + usun_biale_znaki(document.getElementById(pole_vat).value) / 100));
	}else if(opcja == 'netto'){
		document.getElementById(pole_zmiana).value = formatuj_liczbe(document.getElementById(pole_baza).value / (1 + usun_biale_znaki(document.getElementById(pole_vat).value) / 100));
		//netto=(brutto*100)/(100+VAT)
		//alert("baza: " + document.getElementById(pole_baza).value * 100);
		//alert("vat: " + usun_biale_znaki(document.getElementById(pole_vat).value);
		//document.getElementById(pole_zmiana).value = formatuj_liczbe( (document.getElementById(pole_baza).value * 100) / (100 + usun_biale_znaki(document.getElementById(pole_vat).value)) );
	}
}