function centerElement(w,h,id){
    var pageWidth=w;
    var pageHeigth=h;
    var idElement=id
    var element=document.getElementById(idElement);
    if (element != null){
        var height= 605 // parseInt(element.style.height);
        var width= 994 //parseInt(element.style.width);
	    element.style.position = "absolute";								
        element.style.top= (pageHeight / 2) - (height / 2) + "px";
        element.style.left=(pageWidth / 2) - (width / 2) + "px";	        
    }
}