function onerr() 
{
	return true;
}

window.onError=onerr();

function preloadImages() 
{
	var d=document; 
	if ( d.images ) 
	{ 
		if ( !d.p ) d.p = new Array();
		var i,j=d.p.length,a=preloadImages.arguments; 
		for ( i=0; i<a.length; i++)
		{
			if ( a[i].indexOf("#") != 0 )
			{
				d.p[j]=new Image; d.p[j++].src=a[i];
			}
		}
	}
}

function change_pic(picname,pic_object)
{
		window.document[picname].src = pic_object.src;
	return;
}

function change_back(picname,pic_object)
{
		window.document[picname].src = pic_object.src;
	return;
}

function open_win(url_name,win_name,win_options)
{
	if ( ( window_open == true ) && ( new_window.closed == false ) ) 
	{
		new_window.close();
	}
	new_window = window.open(url_name,win_name,win_options);
	window_open = true;
}