function GetLastModified(){
	var broType,tosi,tuki,hi,youbi,ji,hun,lm,i,j;
	var broName=navigator.appName;
	var broAgent=navigator.userAgent;
	var broVer=navigator.appVersion;
	youbiArray=new Array(7);
	youbiArray[0]="日";youbiArray[1]="月";youbiArray[2]="火";youbiArray[3]="水";
	youbiArray[4]="木";youbiArray[5]="金";youbiArray[6]="土";

	// ブラウザ種類判別
	if((broName=="Microsoft Internet Explorer")||(broAgent.indexOf("MSIE")>=0)){
	    if(broVer.charAt(0)<4) broType=1;
	    else broType=((broAgent.indexOf("MSIE 5.0")>=0)&&(broAgent.indexOf("MSIE 5.0b")<0)) ? 3 : 2;
	}else{
	    broType=3;
	    if(broAgent.indexOf("IRIX")>=0) broType=1;
	    if(broAgent.indexOf("Mac")>=0) broType=2;
	}
    
	// 更新日調査
	if(broType==1){
	    lm = document.lastModified;
	    i = lm.length;
	    tosi = lm.substring(i,i - 2);
	    tuki = lm.substring(i - 19,i - 17);
	    hi = eval(lm.substring(i - 16,i - 14));    
	    ji = eval(lm.substring(i - 13,i - 11));
	    hun = eval(lm.substring(i - 10,i - 8));
	    youbi = lm.charAt(0);
	}else{
	    if(broType==2){
	        j = new Date(document.lastModified);
	        i = Date.parse(j) + (9 * 60 * 60 * 1000);
	        lm = new Date();
	        lm.setTime(i);
	    }else{
			lm = new Date(document.lastModified);
		}
	    tosi = lm.getFullYear();
		tosi = (tosi<1970) ? tosi+100 : tosi;
	    tuki = lm.getMonth() + 1;
	    hi = lm.getDate();
	    ji = lm.getHours();
	    hun = lm.getMinutes();
	    youbi = youbiArray[lm.getDay()];
	}
	this.tosi = tosi;
	this.tuki = tuki;
	this.hi = hi;
	this.youbi = youbi;
	this.ji = ji;
	this.hun = hun;
}