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      $("#mainImage_01_jb").css('z-index','60'); 
	  $("#mainImage_01_jb").fadeIn('fast');
	  
	  $("#mainImage_02_jb, #mainImage_03_jb, #mainImage_04_jb, #startImage_jb").css({'z-index':'20','display':'none'});
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	$("#small_02_jb").click(function () { 
      $("#mainImage_02_jb").css('z-index','60'); 
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