function toggle_details( id ) {
	var style_content = document.getElementById('content'+id).style;
	var style_frame = document.getElementById('frame'+id).style;
	var style_link = document.getElementById('link'+id).style;
	if( style_content.display == "inline" )
	{	// ausblenden
		style_content.display = "none";
		document.getElementById('linktext'+id).innerHTML = '<img src="/imgtool/plus.gif" alt="Details einblenden" border="0" /> Details einblenden';
		document.getElementById('margin'+id).className = "toggle_nomargin";
	}
	else
	{	// einblenden
		style_content.display = "inline";
		document.getElementById('linktext'+id).innerHTML = '<img src="/imgtool/minus.gif" alt="Details einblenden" border="0" /> Details ausblenden';
		document.getElementById('margin'+id).className = "toggle_margin";
	}
}

function img_zoom( img, img_small, img_large )
{
	if( img_small.length > 3 && img_large.length > 3 )
	{
		img.src = (img.src==img_small) ? img_large : img_small;
	}
}