function goguia(){
	if(document.getElementById('selguia').value != 'noval'){
		var url = 'guias_'+document.getElementById('selguia').value+'.jsp';
		document.getElementById('sform').action = url;
		
	}
}

function gonov(){
	if(document.getElementById('select').value != 'noval'){
		var url = 'novolaras_'+document.getElementById('select').value+'.jsp';
		document.getElementById('sform').action = url;
		
	}
}

function goaud(){
	if(document.getElementById('selaud').value != 'noval'){
		var url = 'audioguia_'+document.getElementById('selaud').value+'.jsp';
		document.getElementById('sform').action = url;
		
	}
}