var offsetfromedge=0
var dockarray=new Array()
var dkclear=new Array()
function dockit(el,duration){this.source=document.all?document.all[el]:document.getElementById(el);this.source.height=this.source.offsetHeight;this.docheight=truebody().clientHeight;this.duration=duration;this.pagetop=0;this.elementoffset=this.getOffsetY();dockarray[dockarray.length]=this;var pointer=eval(dockarray.length-1);var dynexpress='dkclear['+pointer+']=setInterval("dockornot(dockarray['+pointer+'])",100);';dynexpress=(this.duration>0)?dynexpress+'setTimeout("clearInterval(dkclear['+pointer+']); dockarray['+pointer+'].source.style.top=0", duration*1000)':dynexpress;eval(dynexpress);}
dockit.prototype.getOffsetY=function(){var totaloffset=parseInt(this.source.offsetTop);var parentEl=this.source.offsetParent;while(parentEl!=null){totaloffset+=parentEl.offsetTop;parentEl=parentEl.offsetParent;}
return totaloffset;}
function dockornot(obj){obj.pagetop=truebody().scrollTop;if(obj.pagetop>obj.elementoffset)
obj.source.style.top=obj.pagetop-obj.elementoffset+offsetfromedge+"px";else if(obj.pagetop+obj.docheight<obj.elementoffset+parseInt(obj.source.height))
obj.source.style.top=obj.pagetop+obj.docheight-obj.source.height-obj.elementoffset-offsetfromedge+"px";else
obj.source.style.top=0;}
function truebody(){return(document.compatMode&&document.compatMode!="BackCompat")?document.documentElement:document.body}