function Mostrar(op) {

	if (op == 1) {
		if(document.getElementById('opc1').style.display == "block"){
			document.getElementById('opc1').style.display="none";
		}else{
			document.getElementById('opc1').style.display="block";
		}
	}
	

	if (op == 2) {
		if(document.getElementById('opc2').style.display == "block"){
			document.getElementById('opc2').style.display="none";
		}else{
			document.getElementById('opc2').style.display="block";
		}
	}
	
	
	if (op == 3) {
		if(document.getElementById('opc3').style.display == "block"){
			document.getElementById('opc3').style.display="none";
		}else{
			document.getElementById('opc3').style.display="block";
		}
	}
	
	
	if (op == 4) {
		if(document.getElementById('opc4').style.display == "block"){
			document.getElementById('opc4').style.display="none";
		}else{
			document.getElementById('opc4').style.display="block";
		}
	}
	
}