function help(itemnr)
{
	var str = 'http://www.smsdistrict.nl/page/help.php?item=' + itemnr;
	window.open(str, 'HELPWin', 'scrollbars=no,status=no,width=600,height=600'); 
}

function switchSelected( theForm , id , chkVal )
{
	for (i=0,n=theForm.elements.length;i<n;i++)
	{
		if ( theForm.elements[i].id.substr( 0 , id.length ) == id )
		{
			if ( chkVal )
			{
				theForm.elements[i].checked = true;
			}else{
				theForm.elements[i].checked = false;
			}
		}
	}	  
}

function countChecked( theForm )
{
	var m=0;
	for (i=0,n=theForm.elements.length;i<n;i++)
	{
		if ( theForm.elements[i].type == "checkbox" )
		{
			if ( theForm.elements[i].checked == true )
			{
				m = m + 1;
			}
		}
	}

	return m;	  
}

function setStatus( theForm , oType , bStatus )
{
//zet een object van het type oType op disabled als bStatus FALSE is

	var m=0;
	for (i=0,n=theForm.elements.length;i<n;i++)
	{
		if ( theForm.elements[i].type == oType )
		{
			var Obj = document.getElementById(theForm.elements[i].id);

			if ( bStatus == false )
			{
				Obj.disabled = true;
			}else{
				Obj.disabled = false;
			}
		}
	}
}