//gets value from form

function getCheckedValue(radioObj) {
	if(!radioObj)
		Alert("Błąd skryptu!");
	var radioLength = radioObj.length;
	if(radioLength == undefined)
		if(radioObj.checked)
			return radioObj.value;
		else
			return "";
	for(var i = 0; i < radioLength; i++) {
		if(radioObj[i].checked) {
			return radioObj[i].value;
		}
	}
	return ""; //return
}