function zoomImage(img, cont_foto_thickbox)
 {	
	document.getElementById('_img_zoom').src = "getImage.ctr?image=" + img + "&size=540&altezza=700";
	
	document.getElementById("thick_zoom_image").style.visibility = "visible";
	
	//var link = "#TB_inline?height=510&width=632&inlineId=thick_zoom_image&modal=true";

	// calcolo delle dimensioni della finestra del browser
	var width_win = document.documentElement.clientWidth;
	var height_win = document.documentElement.clientHeight;
		
	// dimensioni della thickbox
	var w_thickbox = (width_win/100)*90;
	var h_thickbox = height_win-50;

	var cont_foto_thickbox = document.getElementById('cont_foto_thickbox');
	
	//cont_foto_thickbox.style.width = width_win-150 + 'px';
	//cont_foto_thickbox.style.height = height_win-150 + 'px';

	cont_foto_thickbox.style.width = w_thickbox-5 + 'px';
	cont_foto_thickbox.style.height = h_thickbox-100 + 'px';

	var link = "#TB_inline?height=" + h_thickbox + "&width=" + w_thickbox + "&inlineId=thick_zoom_image&modal=true";
	
	tb_show('Foto', link, null);
 }
 
 function closeZoomImage()
 {
	document.getElementById("thick_zoom_image").style.visibility = "hidden";
	tb_remove();
	document.getElementById('_img_zoom').src = "ec_images/px_trasparente.gif";
 }