function random(){
var ramimage = new Array("/lib/images/topkey_lib1.jpg","/lib/images/topkey_lib2.jpg","/lib/images/topkey_lib3.jpg","/lib/images/topkey_lib4.jpg");
var ramalt = new Array("アメニティ性と利便性を兼ね備えた総合図書館","知的好奇心を120%サポート","最先端の知が集積する場所","知的欲求を刺激するフィールド");
var dd = new Date();
var sec = dd.getSeconds()
var irand = sec % ramimage.length;
var curimg = ramimage[irand];
var curalt = ramalt[irand];
document.write("<h2 id=\"topKey\"><img src=\"" + curimg + "\" alt=\""+curalt+"\" WIDTH=\"754\" HEIGHT=\"195\" /></h2>");
}
random();