function ShowEnDisable(chosen,form1)
{
    form1 = document.getElementById('form1');
	if(chosen!=0)
	{
		if(chosen == 1)
		{
			with(document)
			{
				getElementById('atype').disabled = true;
				getElementById('anumber').disabled = true;
				getElementById('arouting').disabled= true;
				
				
				
				getElementById('ctype').disabled=false;
				getElementById('cnumber').disabled=false;
				getElementById('cmonth').disabled=false;
				getElementById('cyear').disabled=false;
				getElementById('ccvn').disabled=false;
				
				getElementById('atype').value = '';
			getElementById('anumber').value = '';
			getElementById('arouting').value= '';
			getElementById('ctype').value= '';
			getElementById('cnumber').value= '';
			getElementById('cmonth').value= '';
			getElementById('cyear').value= '';
			getElementById('ccvn').value= '';
			}
		}
		else if(chosen == 2)
		{
			with(document)
			{
				getElementById('atype').disabled=false;
				getElementById('anumber').disabled=false;
				getElementById('arouting').disabled=false;
				getElementById('atype').value = '';
			getElementById('anumber').value = '';
			getElementById('arouting').value= '';
			getElementById('ctype').value= '';
			getElementById('cnumber').value= '';
			getElementById('cmonth').value= '';
			getElementById('cyear').value= '';
			getElementById('ccvn').value= '';
				
				getElementById('ctype').disabled= true;
				getElementById('cnumber').disabled= true;
				getElementById('cmonth').disabled= true;
				getElementById('cyear').disabled= true;
				getElementById('ccvn').disabled= true;
				
				
			}
		}
		
	}
	else
	{
		with(document)
		{
			getElementById('atype').disabled=true;
			getElementById('anumber').disabled=true;
			getElementById('arouting').disabled=true;
			getElementById('ctype').disabled=true;
			getElementById('cnumber').disabled=true;
			getElementById('cmonth').disabled=true;
			getElementById('cyear').disabled=true;
			getElementById('ccvn').disabled=true;
					
		}
	}	
}