tagString=new Array();
tagString[0]='<img src="../../common/images/animation/animation_yume.gif" name="yume" id="yume" />';
tagString[1]='<img src="../../common/images/animation/animation_yoru.gif" name="yoru" id="yoru" />';
tagString[2]='<img src="../../common/images/animation/animation_haru.gif" name="haru" id="haru" />';
tagString[3]='<img src="../../common/images/animation/animation_natsu.gif" name="natsu" id="natsu" />';
tagString[4]='<img src="../../common/images/animation/animation_aki.gif" name="aki" id="aki" />';
tagString[5]='<img src="../../common/images/animation/animation_fuyu.gif" name="fuyu" id="fuyu" />';
var imgRandom=Math.floor(Math.random()*tagString.length);
document.write(tagString[imgRandom]);