// JScript File

var topMargin = 160
var slideTime = 1200
var ns6 = (!document.all && document.getElementById);
var ie4 = (document.all);
var ns4 = (document.layers);

function findPos(obj) {
    var curtop = 0;
    if (obj.offsetParent) {
        curtop = obj.offsetTop
        while (obj = obj.offsetParent) {
	        curtop += obj.offsetTop
        }
    }
    return curtop;
}

function floatObject() {
	if (ns4 || ns6) {
		findHt = window.innerHeight;
	} else if(ie4) {
		findHt = document.documentElement.clientHeight;
	}
}

function main() {
	if (ns4) {
		this.currentY = document.floatLayer.top;
		this.scrollTop = window.pageYOffset;
		mainTrigger();
	} else if(ns6) {
		this.currentY = parseInt(document.getElementById('floatLayer').style.top);
		this.scrollTop = scrollY;
		mainTrigger();
	} else if(ie4) {
		this.currentY = floatLayer.style.pixelTop;
		this.scrollTop = document.documentElement.scrollTop;
		mainTrigger();
	}
}
function mainTrigger() {
	var newTargetY = this.scrollTop + this.topMargin
	findHt = findPos(document.getElementById('ctl00_imgFooter'));
	if ( newTargetY > 270) {
	    newTargetY -= 110;
	} else {
	    newTargetY = 160;
	}
	if ( newTargetY > (findHt - 515) ) {
	    newTargetY = findHt - 515;
	}
	if ( this.currentY != newTargetY ) {
		if ( newTargetY != this.targetY ) {
			this.targetY = newTargetY
			floatStart();
		}
		animator();
	}
}
function floatStart() {
	var now = new Date()
	this.A = this.targetY - this.currentY
	this.B = Math.PI / ( 2 * this.slideTime )
	this.C = now.getTime()
	if (Math.abs(this.A) > this.findHt) {
		this.D = this.A > 0 ? this.targetY - this.findHt : this.targetY + this.findHt
		this.A = this.A > 0 ? this.findHt : -this.findHt
	} else {
		this.D = this.currentY
	}
}
function animator() {
var now = new Date()
var newY = this.A * Math.sin( this.B * ( now.getTime() - this.C ) ) + this.D
newY = Math.round(newY)
if (( this.A > 0 && newY > this.currentY ) || ( this.A < 0 && newY < this.currentY )) {
		if ( ie4 )floatLayer.style.pixelTop = newY
		if ( ns4 )document.floatLayer.top = newY
		if ( ns6 )document.getElementById('floatLayer').style.top = newY + "px"
	}
}