function setClass(obj, cl){
	if (obj.className!=cl) obj.className = cl;
}

function setClassById(objid, cl){
	if (!cl) cl = '';
	document.getElementById(objid).className = cl;
}

function CheckAll(checkName, checkVal)
{
	var checkCount = 0;
	var el = document.forms[0].elements;
	for (count = 0; count < el.length; count++)
	{
		if (el[count].name == checkName)
		{
			if (!el[count].disabled)
			{
				el[count].checked = checkVal;
			}
			checkCount++;
		}
	}
}

function ExamAll(checkName, resName)
{
	var checkCount = 0;
	var boxCount = 0;
	var el = document.forms[0].elements;
	
	for (count = 0; count < el.length; count++)
	{
		if (el[count].name == checkName)
		{
			boxCount++;
			if (el[count].checked || el[count].disabled) checkCount++;
		}
	}
	
	if (document.forms[0].elements[resName])
		document.forms[0].elements[resName].checked = (checkCount == boxCount);
}

function chbIsAllEmpty(checkName)
{
	var checkCount = 0;
	var boxCount = 0;
	var el = document.forms[0].elements;
	
	for (count = 0; count < el.length; count++)
	{
		if (el[count].name == checkName + boxCount)
		{
			boxCount++;
			if (el[count].checked) checkCount++;
		}
	}
	
	return (checkCount == 0)
}