function script_fieldDataHelper( obj, target )
{

// this, '".$DD."-".$MM."-".$YYYY."' );

	mStart = obj.selectionStart;
	mEnd = obj.selectionEnd;
	wartosci = new Array();
	wartosci = target.split('-');
	co = obj.value.substring(0, mEnd);

	coWartosci = new Array();
	coWartosci = co.split('-')

	obj.value = co;



	for( i=(coWartosci.length-1); i<(wartosci.length-1); i++)
	{
		obj.value+= wartosci[i];

		if( i < (wartosci.length - 1) )
			obj.value+= "-";

	}


	obj.selectionEnd = obj.value.length;
	obj.selectionStart = 0;
}