function showcodes(codediv) {	
	 var cnt = 0;
	 while(true) {
	 	
   	var holder_div = document.getElementById(codediv + '_' + cnt);
   	if(holder_div == null)
   		return;
   		
   	if (holder_div.style.display == "block") {
      	holder_div.style.display = "none";      
   	}
   	else {   		
   			holder_div.style.display = "block";
   	}
   	cnt++;
   }
}