<!-- // Persistent LAYER

<!-- Original: Eddie Traversa (psych3@primus.com.au) -->
<!-- Web Site: http://dhtmlnirvana.com/ -->
<!-- This script and many more are available free online at -->
<!-- The JavaScript Source!! http://javascript.internet.com -->
<!-- Begin Persistent LAYER

window.onerror = null;
var topMargin = 200;
var slideTime = 1000;
var ns6 = (!document.all && document.getElementById);
var ie4 = (document.all);
var ns4 = (document.layers);
var rightMargin = 10;

function layerObject(id,rightM) {
        if (ns6) {
                this.obj = document.getElementById(id).style;
                this.obj.left = rightM;
                return this.obj;
        }
        else if(ie4) {
                this.obj = document.all[id].style;
                this.obj.left = rightM;
                return this.obj;
        }
        else if(ns4) {
                this.obj = document.layers[id];
                this.obj.left = rightM;
                return this.obj;
   }
}

function layerSetup() {
        floatLyr = new layerObject('floatLayerWnd', rightMargin);
        window.setInterval("main()", 10)
}

function floatObject() {
        if (ns4 || ns6) {
                findHt = window.innerHeight;
        } else if(ie4) {
                findHt = document.body.clientHeight;
   }
}

function main() {
        if (ns4) {
                this.currentY = document.layers["floatLayerWnd"].top;
                this.scrollTop = window.pageYOffset;
                mainTrigger();
        }
        else if(ns6) {
                this.currentY = parseInt(document.getElementById('floatLayerWnd').style.top);
                this.scrollTop = scrollY;
                mainTrigger();
        } else if(ie4) {
                this.currentY = floatLayerWnd.style.pixelTop;
                this.scrollTop = document.body.scrollTop;
                mainTrigger();
           }
}

function mainTrigger() {
        var newTargetY = this.scrollTop + this.topMargin;
        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 )document.all.floatLayerWnd.style.pixelTop = newY;
                if ( ns4 )document.layers["floatLayerWnd"].top = newY;
                if ( ns6 )document.getElementById('floatLayerWnd').style.top = newY + "px";
           }
}

function start() {
        if(ns6||ns4) {
                pageWidth = innerWidth;
                pageHeight = innerHeight;
                layerSetup();
                floatObject();
        }
        else if(ie4) {
                pageWidth = document.body.clientWidth;
                pageHeight = document.body.clientHeight;
                layerSetup();
                floatObject();
           }
}

// End Persistent LAYER -->