$(this).children('img').attr('src');
// 선택한 이미지 주소
$('#img2').attr('src',aa);
// id img2 이미지 변경
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4/jquery.min.js"></script>
<script type="text/javascript">
$(function() {
$('#image_list_100').click(function(){
var aa=$(this).children('img').attr('src');
alert('aa');
$('#img2').attr('src',aa);
});
});
</script>
</head>
<body>
<div id="image_list_100">
<img src="//demo100.mygoodnews.com/data/100/ins_news_photo/201504/2015040949592623.jpg" />
</div>
<p> </p>
<img src="//www.rorynews.com/imgdata/rorynews_com/201501/2015012127549057.jpg" id='img2' />
<p> </p>
</div>
</body>
</html>
================================================
<script type="text/javascript">
$(function(){
var img_c_num=1;
var img_total_num=<?=$t?>;
$('.list_img_area li').mouseover(function(){
var img_url=$(this).children('img').attr('src');
$('#title_main_img').attr('src',img_url);
var img_c_num=$(this).children('img').attr('num');
});
$('.btn_next').click(function(){
if(img_c_num >=img_total_num)
{
img_c_num=1;
}
else
{
img_c_num++;
}
var img_c_num_src=$('#e_img_'+img_c_num).attr("src");
$('#title_main_img').attr('src',img_c_num_src);
});
$('.btn_pre').click(function(){
if(img_c_num <2)
{
img_c_num=img_total_num;
}
else
{
img_c_num--;
}
var img_c_num_src=$('#e_img_'+img_c_num).attr("src");
$('#title_main_img').attr('src',img_c_num_src);
});
});
</script>
여행
윈도우서버 
