How to use Bootstrap to achieve image pop-up and enlargement

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<img  src="/static/imghw/default1.png" data-src="<?php echo $v['pic_detail'];?>" class="lazy" to use bootstrap achieve image pop-up and enlargement alt="How to use Bootstrap to achieve image pop-up and enlargement" >');" /></center>
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             <button></button>
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//显示大图    
   function showHow to use Bootstrap to achieve image pop-up and enlargement(source)
     {
         $("#ShowImage_Form").find("#img_show").html("<how to use bootstrap achieve image pop-up and enlargement></how>");
         $("#ShowImage_Form").modal();
     }