var headname1= "@head1";
	var headname2= "@head2";
 

##</code><code>##

    var headname=[];
	
	for(var i=0;i<total_columns;i++) {
		headname[i+1]= "@line_arry[(i)]";
	}
 

##</code><code>##

     headname[1] = "Order";
     headname[2] = "Order";
 

##</code><code>##

     headname[i+1]= "@line_arry[(0)]";
    headname[i+1]= "@line_arry[(1)]"; 

    "@line_arry[i]" doesnt work whereas 
    "@line_arry[0], @line_arry[1] works.