// Znajduje pozycję elementu na stronie
function findPos(obj) {
	
	if(typeof obj != 'undefined'){
	var curleft = curtop = 0;
	if (obj.offsetParent) {
		curleft = obj.offsetLeft
		curtop = obj.offsetTop
		while (obj = obj.offsetParent) {
			curleft += obj.offsetLeft
			curtop += obj.offsetTop
		}
	}
	return [curleft,curtop];}
	else return [0, 0];
}


 // Znajduje scroll elementu na stronie
function getScrollingPosition() 
{ 
 var position = [0, 0]; 

 if (typeof window.pageYOffset != 'undefined') 
 { 
   position = [ 
       window.pageXOffset, 
       window.pageYOffset 
   ]; 
 } 

 else if (typeof document.documentElement.scrollTop != 'undefined' && document.documentElement.scrollTop > 0) 
 { 
   position = [ 
       document.documentElement.scrollLeft, 
       document.documentElement.scrollTop 
   ]; 
 } 

 else if (typeof document.body.scrollTop != 'undefined') 
 { 
   position = [ 
       document.body.scrollLeft, 
       document.body.scrollTop 
   ]; 
 } 

 return position; 
}

function validateForm(form){
		for(var i=0; i< form.elements.length; i++){
			if(form.elements[i].value == "" && form.elements[i].name.substr(0,2) == "in" && form.elements[i].type == "text" && form.elements[i].id != ""){
				//form.elements[i].focus();
				alert("Pole "+form.elements[i].id+" musi być wypełnione");
				return false;
			}
		}
}