var Mac = navigator.appVersion.indexOf('Mac',0) != -1;
var Win = navigator.appVersion.indexOf('Win',0) != -1;
var IE  = navigator.appName.indexOf("Microsoft Internet Explorer",0) != -1;
var NN  = navigator.appName.indexOf("Netscape",0) != -1;
var Moz = navigator.userAgent.indexOf("Gecko") != -1;
var Opera = window.opera;
var Opera6 = navigator.userAgent.indexOf("Opera 6") != -1;
var Opera7 = navigator.userAgent.indexOf("Opera 7") != -1;
var Vmajor = parseInt(navigator.appVersion); // ex. 3
var Vminor = parseFloat(navigator.appVersion); // ex. 3.01
var WinIE55 = ((Win && navigator.appVersion.indexOf('MSIE 5.5',0) != -1));
var MacIE5 = ((Mac && navigator.appVersion.indexOf('MSIE 5.',0) != -1));
var MacIE4 = ((Mac && navigator.appVersion.indexOf('MSIE 4.',0) != -1));
var MacIE3 = ((Mac && navigator.appVersion.indexOf('MSIE 3.',0) != -1));
var iCab = (navigator.userAgent.indexOf("iCab",0) != -1);

var sndlist = new Array(
	"midi/pause.wav",
	"midi/pause2.wav" );
var sndName = Math.floor(Math.random() * 2);
var timer = "200";	//縦スクロールスピード
function scrl(step)
{
	isize = screen.width;
	count = Math.abs(isize / step)*2;
	nsize = isize;
	if(document.getElementById && IE)
	{
		mySND.src = sndlist[sndName];
	}
	while(count > 0)
	{
		scrollBy(step,0);
		count--;
	}
}