function ShowAlt(event,href) {
	if(!href.title & !href.my_title) {return}
	div = document.getElementById('alt_hint')
	div.innerHTML = href.title
	if (href.title == '') {
		div.innerHTML = href.my_title
	} else {
		href.my_title = href.title
	}
	href.title = ''
	div.style.display='block';
	div.style.visibility='visible';
	div.style.left = event.clientX + document.body.scrollLeft + 10
	div.style.top = event.clientY + document.body.scrollTop + 10
}

function HideAlt(href) {
	document.getElementById('alt_hint').style.display='none';
	document.getElementById('alt_hint').style.visibility='hidden';
}

function open_pic(u,w,h,max_w,max_h) {
	if (window.screen) {
		max_w = window.screen.width - 20;
		max_h = window.screen.height - 53;
	}
	win_w = w + 0;
	win_h = h + 0;
	if (win_w > max_w) win_w = max_w;
        if (win_h > max_h) win_h = max_h;
	win = window.open('','',"width=" + win_w + ", height=" + win_h + ",scrollbars=auto,resizable=1,resizable=yes");
	win.document.open();
	win.document.write('<body bgcolor=#F1F2F2 leftMargin=0 rightMargin=0 topMargin=0 marginwidth=0 marginheight=0>');
	win.document.write('<img width=' + w + ' height=' + h + ' src="' + u + '">');
	win.document.close();
 	win.focus();
        return(win);
}
