var pics = Math.floor(Math.random()*14+1);
//stylesheet
if (pics < 10){
document.write('<img src="http://kanmuri.net/images/top_ue_0'+pics+'.jpg" alt="池田の風景" width="900" height="140" border="0" />');
}else{
document.write('<img src="http://kanmuri.net/images/top_ue_'+pics+'.jpg" alt="池田の風景" width="900" height="140" border="0" />');
}