function form_de_pago(obj){

	if((obj.value=="1") || (obj.value=="11") || (obj.value=="111")) //tarjetas
		{javascript:document.getElementById('Visa').style.display = 'block';
		javascript:document.getElementById('tarjeta_via_fax').style.display = 'none';
		javascript:document.getElementById('paypal').style.display = 'none';
		javascript:document.getElementById('transferencia').style.display = 'none';
		if(obj.value=="1")
			{javascript:document.getElementById('11').checked = false;
			javascript:document.getElementById('111').checked = false;}
		if(obj.value=="11")
			{javascript:document.getElementById('1').checked = false;
			javascript:document.getElementById('111').checked = false;}
		if(obj.value=="111")
			{javascript:document.getElementById('1').checked = false;
			javascript:document.getElementById('11').checked = false;}	
		javascript:document.getElementById('3').checked = false;
		if(document.getElementById('4'))
			javascript:document.getElementById('4').checked = false;
		if(document.getElementById('2'))
		javascript:document.getElementById('2').checked = false;
		javascript:document.getElementById('5').checked = false;
		}
	else	
		if(obj.value=="2")
			{javascript:document.getElementById('Visa').style.display = 'none';
			javascript:document.getElementById('tarjeta_via_fax').style.display = 'block';
			javascript:document.getElementById('paypal').style.display = 'none';
			javascript:document.getElementById('transferencia').style.display = 'none';
			javascript:document.getElementById('3').checked = false;
			if(document.getElementById('4'))
				javascript:document.getElementById('4').checked = false;
			javascript:document.getElementById('5').checked = false;
			javascript:document.getElementById('1').checked = false;
			javascript:document.getElementById('11').checked = false;
			javascript:document.getElementById('111').checked = false;
			}
		else
			if(obj.value=="3") //transerecina
		  {
		  	javascript:document.getElementById('Visa').style.display = 'none';
			javascript:document.getElementById('tarjeta_via_fax').style.display = 'none';
			javascript:document.getElementById('paypal').style.display = 'none';
			javascript:document.getElementById('transferencia').style.display = 'block';
			javascript:document.getElementById('5').checked = false;
			if(document.getElementById('4'))
				javascript:document.getElementById('4').checked = false;
			if(document.getElementById('2'))
				javascript:document.getElementById('2').checked = false;
			javascript:document.getElementById('1').checked = false;
			javascript:document.getElementById('11').checked = false;
			javascript:document.getElementById('111').checked = false;
		  }
		  else
		  if(obj.value=="5") //paypal
		  {
		  	javascript:document.getElementById('Visa').style.display = 'none';
			javascript:document.getElementById('tarjeta_via_fax').style.display = 'none';
			javascript:document.getElementById('transferencia').style.display = 'none';
			javascript:document.getElementById('paypal').style.display = 'block';
			javascript:document.getElementById('3').checked = false;
			if(document.getElementById('4'))	
				javascript:document.getElementById('4').checked = false;
			if(document.getElementById('2'))
				javascript:document.getElementById('2').checked = false;
			javascript:document.getElementById('1').checked = false;
			javascript:document.getElementById('11').checked = false;
			javascript:document.getElementById('111').checked = false;
		  }
		  else
		   if((obj.value=="4") || (obj.value=="0")) //reemboldo y nada
		  	{
			javascript:document.getElementById('Visa').style.display = 'none';
			javascript:document.getElementById('tarjeta_via_fax').style.display = 'none';
			javascript:document.getElementById('transferencia').style.display = 'none';
			javascript:document.getElementById('paypal').style.display = 'none';
			javascript:document.getElementById('3').checked = false;
			javascript:document.getElementById('5').checked = false;
			if(document.getElementById('2'))
				javascript:document.getElementById('2').checked = false;
			javascript:document.getElementById('1').checked = false;
			javascript:document.getElementById('11').checked = false;
			javascript:document.getElementById('111').checked = false;
			}
			else
			if((obj.value=="0") || (obj.value==""))
				alert("Debe Seleccionar una forma de pago!");
}