var img1 = new Image();
var img2 = new Image();
img2.src = 'Files/Fa/Images/topnav3dis.gif';
img1.src = 'Files/Fa/Images/topnav1dis.gif';

var Interval_Handle;
Interval_Handle = null;
function Stop()
{
step = 1;
if(Interval_Handle != null)
clearInterval(Interval_Handle);
}
var x1=0;
var step;
step = 1;
function Moving_Left()
{
var Max_Width;
var e;
var mm;
e = document.getElementById('LeftKey1');
e.src = e.BkSrc;
e = document.getElementById('ScrollNewsGroupBox');
Max_Width = parseInt(document.getElementById('GroupNews').clientWidth);
Max_Width = Max_Width - e.clientWidth;
if(parseInt(e.scrollLeft) < Max_Width)
{
mm = step / 5;
if(mm == 0)mm = 1;
e.scrollLeft = e.scrollLeft + mm;
step++;
}
else
{
//e.scrollLeft = Max_Width+'px';
document.getElementById('RightKey1').src = img2.src;
Stop();
}
}
function Moving_Right()
{
var e;
var mm;
e = document.getElementById('RightKey1');
e.src = e.BkSrc;
e = document.getElementById('ScrollNewsGroupBox');
if(parseInt(e.scrollLeft) > 0)
{
mm = step / 5;
if(mm == 0)mm = 1;
e.scrollLeft = e.scrollLeft - mm;
step++;
}
else
{
e.scrollLeft = '0px';
document.getElementById('LeftKey1').src = img1.src;
Stop();
}
}
function MoveLeft()
{
if(Interval_Handle != null)Stop();
Interval_Handle =  setInterval("Moving_Left();",50);
}
function MoveRight()
{
if(Interval_Handle != null)Stop();
Interval_Handle =  setInterval("Moving_Right();",50);
}