function zdjecie(url, width, height) {       
       zdjecie_=window.open(url, 'Photo', 'width='+width+',height='+height+',status=no,scrollbars=no,resize=no,menubar=no');
	zdjecie_.focus();
}
        
function sprawdz_puste(obj)
{
	if(obj.value.length>0)
	{
		return true;
	}
	else return false;

}

function selectAll(form,zmienna) {

       for (var i=0;i < form.length;i++) {
               fldObj = form.elements[i];
               if (fldObj.name.substring(0,zmienna.length) == zmienna.toString())
               fldObj.checked = (fldObj.checked) ? false : true;
       }
}

function popup(url,height,width)
{
	var newwindow=window.open(url,'popup','height='+height+',width='+width);
	if (window.focus) {newwindow.focus()}
}