function CA(num)
{
 if (num == "0")
    {
	Cflag(0);
	document.listform.allbox[2].checked = document.listform.allbox[0].checked;
	if (document.listform.allbox[0].checked == false)
	   {
	        document.listform.allbox[1].checked = document.listform.allbox[0].checked
			document.listform.allbox[3].checked = document.listform.allbox[0].checked
		    
	   }
	}
  else if (num == "1")
    {
    Cflag(1);
	document.listform.allbox[0].checked = document.listform.allbox[1].checked;
	document.listform.allbox[2].checked = document.listform.allbox[1].checked;
	document.listform.allbox[3].checked = document.listform.allbox[1].checked;
	}
  else if (num == "2")
    {
	Cflag(2);
	document.listform.allbox[0].checked = document.listform.allbox[2].checked;
	if (document.listform.allbox[2].checked == false)
	   {
	        document.listform.allbox[1].checked = document.listform.allbox[0].checked
			document.listform.allbox[3].checked = document.listform.allbox[0].checked
		    
	   }
	}
  else if (num == "3")
    {
	Cflag(3);
	document.listform.allbox[0].checked = document.listform.allbox[3].checked;
	document.listform.allbox[1].checked = document.listform.allbox[3].checked;
	document.listform.allbox[2].checked = document.listform.allbox[3].checked;	
	}
  else if (num == "4")
    {
	for(var i=0;i<document.listform.flag1.length;i++){
	     var e=document.listform.flag1[i];
		 if (e.checked == false)
		    {
            document.listform.allbox[0].checked = e.checked;
	        document.listform.allbox[1].checked = e.checked;
	        document.listform.allbox[2].checked = e.checked;
			document.listform.allbox[3].checked = e.checked;
		    
			}
		}
	}
    
	
}

function Cflag(flag_num)
{
 	for(var i=0;i<document.listform.flag1.length;i++){
	    
		var e=document.listform.flag1[i];
		if(e.name!='allbox') 
		
		e.checked=document.listform.allbox[flag_num].checked;    

}
}