window.onresize=HandleForResize;

var ImgWidth;
var HalfImgWidth;
var CenterX;
var pos;
var dir = 0;
var which = 0;
var delta = 0;
var layer;

function InitTitleImageAction()
{
    if (navigator.appName != "Netscape") return;
    layer = document.layers[0];
    ImgWidth = layer.document.TitleImage.width;
    HalfImgWidth = ImgWidth/2;
    CenterX = window.document.width/2;
    if (CenterX < HalfImgWidth) CenterX = HalfImgWidth;
    pos = HalfImgWidth+90;
}

function HandleForResize()
{
    if (navigator.appName != "Netscape") return;
    HalfImgWidth = ImgWidth/2;
    CenterX = window.document.width/2;
    if (CenterX < HalfImgWidth) CenterX = HalfImgWidth;
    pos = HalfImgWidth+90;
}

function TitleImageAction()
{
    if (navigator.appName != "Netscape") return;
    if (which == 0) {
	if (pos <= -20) dir = 1;
	if (pos >= HalfImgWidth+100)  {
	    which = 1;
	    dir = 0;
	}
	if (dir == 1) pos += 10;
	else pos -= 10;
   
        layer.clip.left  = CenterX-pos;
        layer.clip.right = CenterX+pos;
    } else if (which == 1) {
	if (pos <= -HalfImgWidth-10) dir = 1;
	if (pos >= HalfImgWidth+100)  {
	    which = 2;
	    dir = 0;
	}
	if (dir == 1) pos += 10;
	else pos -= 10;
   
        layer.clip.right = CenterX+pos;
    } else {
        var top = layer.top;
        if (top == 0) {
	    if (dir == 1) dir = 2;
	    if (dir == 5) dir = 6;
	}
        var left = layer.left;
        if (left == 0) {
	    if (dir == 3) dir = 4;
	    if (dir == 7) dir = 8;
	}
        if (top  <= -50) dir = 1;
        if (left <= -50) dir = 3;
        if (top  >=  50) dir = 5;
        if (left >=  50) dir = 7;
	
        if (dir == 0) layer.top  -= 5;
        if (dir == 1) layer.top  += 5;
        if (dir == 2) layer.left -= 5;
        if (dir == 3) layer.left += 5;
        if (dir == 4) layer.top  += 5;
        if (dir == 5) layer.top  -= 5;
        if (dir == 6) layer.left += 5;
        if (dir == 7) layer.left -= 5;

	if (dir == 8) {
	    dir = 0;
	    which = 0;
	}
    }
}