var timer00=0;
var timer01=1;
var timer02=2;
var timer03=3;

var sw00=0;
var sw01=0;
var sw02=0;
var sw03=0;

var menuPathTbl = new Array("img/menu00.jpg","img/menu01.jpg","img/menu02.jpg","img/menu03.jpg");

function OnTimer00()
{
	var diff = Math.floor( Math.random() * 3 );
	diff--;
	timer00+=diff;
	if( timer00 == 4 )
	{
		timer00=0;
	}
	if( timer00 == -1 )
	{
		timer00=3;
	}
	document.getElementById('menu00').src=menuPathTbl[timer00];

	if( sw00 == 0  )
	{
		window.setTimeout("OnTimer00()" , 200+(diff*100) );
	}
	else
	{
		window.setTimeout("OnTimer00()" , 20 );
	}
}

function OnTimer01()
{
	var diff = Math.floor( Math.random() * 3 );
	diff--;
	timer01+=diff;
	if( timer01 == 4 )
	{
		timer01=0;
	}
	if( timer01 == -1 )
	{
		timer01=3;
	}
	document.getElementById('menu01').src=menuPathTbl[timer01];
	if( sw01 == 0 )
	{
		window.setTimeout("OnTimer01()" , 200+(diff*100) );
	}
	else
	{
		window.setTimeout("OnTimer01()" , 20 );
	}
}

function OnTimer02()
{
	var diff = Math.floor( Math.random() * 3 );
	diff--;
	timer02+=diff;
	if( timer02 == 4 )
	{
		timer02=0;
	}
	if( timer02 == -1 )
	{
		timer02=3;
	}
	document.getElementById('menu02').src=menuPathTbl[timer02];
	if( sw02 == 0 )
	{
		window.setTimeout("OnTimer02()" , 200+(diff*100) );
	}
	else
	{
		window.setTimeout("OnTimer02()" , 20 );
	}
}

function OnTimer03()
{
	var diff = Math.floor( Math.random() * 3 );
	diff--;
	timer03+=diff;
	if( timer03 == 4 )
	{
		timer03=0;
	}
	if( timer03 == -1 )
	{
		timer03=3;
	}
	document.getElementById('menu03').src=menuPathTbl[timer03];
	if( sw03 == 0 )
	{
		window.setTimeout("OnTimer03()" , 200+(diff*100) );
	}
	else
	{
		window.setTimeout("OnTimer03()" , 20 );
	}
}


function OnMyLoad()
{
	window.setTimeout("OnTimer00()" , 200 );
	window.setTimeout("OnTimer01()" , 200 );
	window.setTimeout("OnTimer02()" , 200 );
	window.setTimeout("OnTimer03()" , 200 );
}

window.onload=OnMyLoad;