a=1;
function hide_ch()
{

var node01 = document.getElementById("del01");

var node2 = document.getElementById("del2");
var node31 = document.getElementById("del31");

var node4 = document.getElementById("del4");
var node5 = document.getElementById("del5");
var node6 = document.getElementById("del6");
var node00 = document.getElementById("mystyle");
	

    if (a==1)
    {
                     
     
node01.style.display = 'none';
node31.style.display = 'none';

	  node2.style.display = 'none';
	  	
	  node4.style.display = 'none';
	  node5.style.display = 'none';
	  node6.style.display = 'none';
	  node00.disabled=true;
	  
	  

        a=0;

    } else
{
	      
 	  
                     node2.style.display = 'block';
	  node01.style.display = 'block';
	  node31.style.display = 'block';

	 
	  node4.style.display = 'block';
	  node5.style.display = 'block';
	  node6.style.display = 'block';
                    node00.disabled=false;
	 

        
	
	  a=1;


}
}