var menu0, menu1, menu2, intShow0, intHide0, intShow1, intHide1, intShow2, intHide2;
var i0 = -425, speed0 = 30;  
var i1 = -425, speed1 = 30;   
var i2 = -425, speed2 = 30; 

window.onload = function() {
menu0 = document.getElementById("menu0");
menu0.onmouseover = showmenu0;
menu0.onmouseout = hidemenu0;

menu1 = document.getElementById("menu1");
menu1.onmouseover = showmenu1;
menu1.onmouseout = hidemenu1;

menu2 = document.getElementById("menu2");
menu2.onmouseover = showmenu2;
menu2.onmouseout = hidemenu2;
}

function showmenu0() {
clearInterval(intHide0);
intShow0 = setInterval("show0()",10);
}

function hidemenu0() {
clearInterval(intShow0);
intHide0 = setInterval("hide0()",10);
}

function showmenu1() {
clearInterval(intHide1);
intShow1 = setInterval("show1()",10);
}

function hidemenu1() {
clearInterval(intShow1);
intHide1 = setInterval("hide1()",10);
}

function showmenu2() {
clearInterval(intHide2);
intShow2 = setInterval("show2()",10);
}

function hidemenu2() {
clearInterval(intShow2);
intHide2 = setInterval("hide2()",10);
}

function show0() {   
if (i0 < -12) {   
i0 = i0 + speed0;   
menu0.style.left = i0;
	}
} 
function hide0() {   
if (i0 > -425) {   
i0 = i0 - speed0;   
menu0.style.left = i0;
	}
} 

function show1() {   
if (i1 < -12) {   
i1 = i1 + speed2;   
menu1.style.right = i1;
	}
} 
function hide1() {   
if (i1 > -425) {   
i1 = i1 - speed1;   
menu1.style.right = i1;
	}
}

function show2() {   
if (i2 < -12) {   
i2 = i2 + speed2;   
menu2.style.right = i2;
	}
} 
function hide2() {   
if (i2 > -425) {   
i2 = i2 - speed2;   
menu2.style.right = i2;
	}
}   

document.documentElement.scrollTop