//ちょっと遊んでみました(^^ゞ

bName = navigator.appName;
bVer = parseInt(navigator.appVersion);
       	if (bName == "Netscape" && bVer == 3) ver = "n3";
       	else if (bName == "Netscape" && bVer == 2) ver = "n2";
       	else if (bName == "Netscape" && bVer >= 4) ver = "n4";
       	else if (bName == "Microsoft Internet Explorer" && bVer == 2) ver = "e3";
       	else if (bName == "Microsoft Internet Explorer" && bVer > 2) ver = "e4";
if (navigator.appVersion.indexOf("Mac") != -1) ver+="m";
function shake() {
       	if (ver == "n4" || ver == "n4m" || ver == "e4" || ver == "e4m") {
       	        for (i = 6; i > 0; i--) {
       	        	for (z = 6; z > 0; z--) {
       	                	self.moveBy(0,i);
       	                	self.moveBy(i,0);
       	                	self.moveBy(0,-i);
       	                	self.moveBy(-i,0);
       	        	} 
       		}
       	}
}
setTimeout('shake()',3000);