window.onerror = null;
var topMargin = 0;
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(x) {
// floatLyr = new layerObject('floatLayer', pageWidth * x);
}
function inter(){
 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(.6);
 inter();
 floatObject();
 }
 else if(ie4) {
 pageWidth = document.body.clientWidth;
 pageHeight = document.body.clientHeight;
 layerSetup(.6);
 inter();
 floatObject();
   }*/
}

function estatico(){
 newY=2;
 if(ns6||ns4) {
  pageWidth = innerWidth;
  pageHeight = innerHeight;
  layerSetup(.6);
  floatObject();
 if ( ns4 )document.layers["floatLayer"].top = newY;
 if ( ns6 )document.getElementById('floatLayer').style.top = newY + "px";
 }
 else if(ie4) {
 pageWidth = document.body.clientWidth;
 pageHeight = document.body.clientHeight;
 layerSetup(.6);
 floatObject();
 if ( ie4 )document.all.floatLayer.style.pixelTop = newY;
   }
}