<!-- 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

window.onerror = null;

var topMargin = 5;

var slideTime = 1200;

var ns6 = (!document.all && document.getElementById);

var ie4 = (document.all);

var ns4 = (document.layers);

function layerObject(id,left) {

if (ns6) {

this.obj = document.getElementById(id).style;

this.obj.left = left;

return this.obj;

}

else if(ie4) {

this.obj = document.all[id].style;

this.obj.left = left;

return this.obj;

}

else if(ns4) {

this.obj = document.layers[id];

this.obj.left = left;

return this.obj;

   }

}

function layerSetup() {

floatLyr = new layerObject('floatLayer', 500);

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["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.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.floatLayer.style.pixelTop = newY;

if ( ns4 )document.layers["floatLayer"].top = newY;

if ( ns6 )document.getElementById('floatLayer').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 -->