function Bt_Out(nId, nPT){
	var sImg;
	var oBt;
	var sAP;
	if( nPT==null )
		sAP="";
	else
		sAP="../"
	if(nId.substring(0,4)=="M_bt")
		nId=nId.substring(2);
	
	switch (nId){
		case "bt1":
			sImg="Images/B_Empresa.gif";
			break;
		case "bt2":
			sImg="Images/B_Tienda.gif";
			break;
		case "bt3":
			sImg="Images/B_Contacto.gif";
			break;
		case "btPriv":
			sImg="Images/B_Privada.gif";
			break;
		case "bt5":
			sImg="Images/B_Noticias.gif";
			break;
		case "bt6":
			sImg="Images/B_Revista.gif";
			break;
		}
		oBt=document.getElementById(nId);
		oBt.src=sAP+sImg;
}
function Bt_Over(nId, nPT){
	var sImg;
	var sAP;
	if( nPT==null )
		sAP="";
	else
		sAP="../"
	if(nId.substring(0,4)=="M_bt")
		nId=nId.substring(2);
		
	switch (nId){
		case "bt1":
			sImg="Images/B_Empresa_2.gif"
			break;
		case "bt2":
			sImg="Images/B_Tienda_2.gif";
			break;
		case "bt3":
			sImg="Images/B_Contacto_2.gif";
			break;
		case "btPriv":
			sImg="Images/B_Privada_2.gif";
			break;
		case "bt5":
			sImg="Images/B_Noticias_2.gif";
			break;
		case "bt6":
			sImg="Images/B_Revista_2.gif";
			break;
		}
	document.getElementById(nId).src=sAP+sImg;
}