function zmnhasl(huksnr){
var szer=Math.ceil(1*screen.width/2);
var wys=Math.ceil(1*screen.height/3);
var scx=Math.ceil(1*screen.width/4);
var scy=wys;
var url="zmnhasl.php?idhuks="+huksnr;
var Win = window.open(url,"haszwin",'width='+szer+',height='+wys+',screenX='+scx+',screenY='+scy+',resizable=1,scrollbars=1,menubar=no' );
}
//---------------------------------------------------------------
function zmnkol(ident){
var popkol=document.forms['edkolink'].elements['popkol'].value;
var aktkol=document.forms['edkolink'].elements['kol('+ident+')'].value;
if(aktkol==popkol){
}else{
  if(czycal(aktkol)=="1"){
     document.forms['edkolink'].elements['kol('+ident+')'].value=popkol;
     alert("dozwolone tylko liczby naturalne");		
  }else{
     document.edkolink.action="./index.php?idstr=7&kolchg="+ident;   
     document.edkolink.submit();
  }

}
}
//---------------------------------------------------------------
function zappop(ident){
var aktkol=document.forms['edkolink'].elements['kol('+ident+')'].value;
document.forms['edkolink'].elements['popkol'].value=aktkol;
}
//---------------------------------------------------------------
function czycal(lnc){
var blad="0";
var str=trim(lnc);
if(str.length==0){
  blad="1";
} else {  
  var lxl=str.length;
  var sxs=0;
  var zxz=0;
  var znak=" ";
  while (sxs<lxl && blad=="0"){
     znak=trim(str.substr(sxs,1));	     
     if(znak.length>0){
        if (znak=="0" || znak=="1" || znak=="2" || znak=="3" || znak=="4" || znak=="5" || znak=="6" || znak=="7" || znak=="8" || znak=="9"){
        }else{
            blad="1";	   
        }	   
     }	
     sxs=sxs+1;     
  }  
}
if (blad=="0"){
   if(1*lnc==0){
      blad="1";
   }
}
return blad;
}
//---------------------------------------------------------------

function trim(str, chars) {
    return ltrim(rtrim(str, chars), chars);
}
//---------------------------------------------------------------
function ltrim(str, chars) {
    chars = chars || "\\s";
    return str.replace(new RegExp("^[" + chars + "]+", "g"), "");
}

//---------------------------------------------------------------
function rtrim(str, chars) {
    chars = chars || "\\s";
    return str.replace(new RegExp("[" + chars + "]+$", "g"), "");
}