<!--rndimg = new Array();rndimg[0] = "image/060407/03.jpg";rndimg[1] = "image/akayu.jpg";rndimg[2] = "image/050823/05.jpg";rndimg[3] = "image/050812/yamato01.jpg";rndlink = new Array();rndlink[0] = 'http://www.gasshuku.jp/archives/main/000442.html';rndlink[1] = 'http://www.gasshuku.jp/archives/main/000296.html';rndlink[2] = 'http://www.gasshuku.jp/archives/main/000242.html';rndlink[3] = 'http://www.gasshuku.jp/archives/main/000187.html';rndnum = Math.floor(Math.random() * 36) + 1;if(rndnum <= 9){ rndnum = 0;}else if(rndnum <= 24){ rndnum = 1;}else{ rndnum = 2;}function RandImage() { document.write("<a href=\"javascript:MainImgLink()\"><img name=\"mainimg\" src=\""  + rndimg[rndnum] + "\" width=\"255\" height=\"85\" border=\"0\" class=\"lr\" /></a>");}function MainImgLink(){ location.href = rndlink[rndnum];}function MainImgChange(){ rndnum++; if(rndnum > rndimg.length - 1){  rndnum = 0; } document.mainimg.src = rndimg[rndnum];}//-->