var ajaxurl = '_ajax/helpcenter.ajax';
var boxloading  ='<img src="_images/loading/spinning.gif" align="absmiddle" />';

function showLayerDefault(element){
	$(element).style.display = 'inline';
}

function IsUseful(ans_code) {
	  switch (ans_code){
	  	case 1:
	  	case 2:
	  		span_no = '1';
	  		break;
	  	case 3:
	  	case 4:
	  		span_no = '2';
	  		break;
	  	case 5:
	  	case 6:	  			
	  		span_no = '3';
	  		break;	  	
	  }	
	var req = new Request({
	  url      : ajaxurl,				  
	  method   : 'post',
	  data: {
		  'task'      : 'run_useful',
		  'ID'        : $('Answerid').value,
		  'Useful'    : ans_code
	  },
	  onRequest : function(){
			$('useful'+ span_no).innerHTML = boxloading + ' لطفا منتظر بمانید ... ';	
	  },
	  onComplete: function(response) { 
			$('useful'+ span_no).innerHTML = '<img src="_images/check.gif" align="right" /> <b style="color:#3F7C5F">از نظر شما متشكريم</b>';
	  }
	}).send();
}