function highlight(elem)
{
	if (elem.className.indexOf("sel") == -1)	
		elem.className += " sel";
	else
		elem.className = elem.className.replace(" sel", "");
}

var enlarge_wnd = null;

function enlarge(src)
{
	if (enlarge_wnd != null)
		enlarge_wnd.close();
	
	enlarge_wnd = window.open(src, '_blank', 'menubar=no, width=500, height=400');
	
/*	if (enlarge_wnd == null || enlarge_wnd.closed)
	{
		enlarge_wnd = window.open('', '_blank', 'menubar=no, width=500, height=400');
		
		var img = enlarge_wnd.document.createElement('img');
		img.setAttribute('id', 'pic');
		
		enlarge_wnd.document.body.appendChild(img);;
	}
	
	var pic = enlarge_wnd.document.getElementById('pic');
	pic.src = src;
	
	setTimeout("enlarge_wnd.width = enlarge_wnd.document.getElementById('pic').width; alert(enlarge_wnd.width);", 500);
	
	
	enlarge_wnd.focus();*/
}

function $(elem_id)
{
	return document.getElementById(elem_id);
}

function focus_first_elem()
{
	var frm = document.forms[0];
	if (frm == null) return;
	
	var elems = frm.elements;
	if (elems == null) return;
	
	for (var i = 0; i < elems.length; i++)
	{
		if (elems[i].type == 'text')
		{
			elems[i].focus();
			break;
		}
	}
}