jQuery Autocomplete PHP-MySQL แสดงข้อมูลที่ textbox 2 ช่องไม่ได้

function suggest(inputString){
		if(inputString.length == 0) {
			$('#suggestions').fadeOut();
		} else {
		$('#idx').addClass('load');
			$.post("subject_autosugest.php", {queryString: ""+inputString+""}, function(data){
				if(data.length >0) {
					$('#suggestions').fadeIn();
					$('#suggestionsList').html(data);
					$('#idx').removeClass('load');
				}
			});
		}
	}


function suggest2(inputString){
		if(inputString.length == 0) {
			$('#suggestions2').fadeOut();
		} else {
		$('#idxx').addClass('load');
			$.post("stdgroup_autosugest.php", {queryString: ""+inputString+""}, function(data){
				if(data.length >0) {
					$('#suggestions2').fadeIn();
					$('#suggestionsList2').html(data);
					$('#idxx').removeClass('load');
				}
			});
		}
		
	}
	
	function fill(thisValue) {
		$('#idx').val(thisValue); 
		setTimeout("$('#suggestions').fadeOut();", 600);
	}

     <div id="suggest">
             <label>รหัสวิชา</label>
             <input type="text" id="idx"  name="sjID" value="" onkeyup="suggest(this.value);" onblur="fill();" class="" >
             <div class="suggestionsBoxAddSubject" id="suggestions" style="display: none;"> 
             <img src="<?=ROOT_DIR?>images/arrow.png" style="position: relative; top: -20px; left: 180px;" alt="upArrow" />
                 <div class="suggestionList" id="suggestionsList"> &nbsp; </div>
             </div>
        </div><!--suggest-->



            
        <div id="suggest2">
             <label>รหัสหมู่เรียน</label>
             <input type="text" id="idxx"  name="sGroup" value="" onkeyup="suggest2(this.value);" onblur="fill();" class="" >
             <div class="suggestionsBoxAddGroup" id="suggestions2" style="display: none;"> 
             <img src="<?=ROOT_DIR?>images/arrow.png" style="position: relative; top: -20px; left: 180px;" alt="upArrow" />
                 <div class="suggestionList" id="suggestionsList2"> &nbsp; </div>
             </div>
        </div><!--suggest-->