function event_onclick(id_obj, event_id)
	{
	var elem = document.getElementById(id_obj);
	if (event_id == '1')
		{ elem.onclick = function () { bigpictureopen(elem.src, elem.title); }; }
	if (event_id == '2')
		{ elem.onclick = function () { bigpictureclose(); }; }
	}

function event_onmouseover(id_obj)
	{
	var elem = document.getElementById(id_obj);
	elem.onmouseover = function () { changeOpac(100 , elem.id ); };
	}

function event_onmouseout(id_obj)
	{
	var elem = document.getElementById(id_obj);
	elem.onmouseout = function () { changeOpac(70 , elem.id ); };
	}