function imgOn(imgName) 
{
	if (document.images)
		{
    	    	document[imgName].src = eval(imgName + "on.src");
		}
}

function imgOff(imgName)
{
	if (document.images) 
		{
		document[imgName].src = eval(imgName + "off.src");
		}
}

if (document.images)
	{
	img0on = new Image(); 
	img0on.src = "icones/cab_informatica_on.jpg"; 

	img0off = new Image(); 
	img0off.src = "icones/cab_informatica_off.jpg";

	img1on = new Image();
	img1on.src = "icones/cab_weblog_on.jpg"; 

	img1off = new Image(); 
	img1off.src = "icones/cab_weblog_off.jpg";
	
	img2on = new Image(); 
	img2on.src = "icones/cab_fotos_on.jpg"; 

	img2off = new Image(); 
	img2off.src = "icones/cab_fotos_off.jpg";

	img3on = new Image();
	img3on.src = "icones/cab_audio_on.jpg"; 

	img3off = new Image(); 
	img3off.src = "icones/cab_audio_off.jpg";
	
	img4on = new Image(); 
	img4on.src = "icones/cab_video_on.jpg"; 

	img4off = new Image(); 
	img4off.src = "icones/cab_video_off.jpg";

	img5on = new Image(); 
	img5on.src = "icones/cab_eu_on.jpg"; 

	img5off = new Image(); 
	img5off.src = "icones/cab_eu_off.jpg";
	}