ÿþ/***********************************************

* Dock maintext script- Created by and © Dynamicdrive.com

* This notice must stay intact for use

* Visit http://www.dynamicdrive.com/ for full script

***********************************************/



var offsetfromedge=0      //offset from window edge when maintext is "docked". Change if desired.

var dockarray=new Array() //array to cache dockit instances

var dkclear=new Array()   //array to cache corresponding clearinterval pointers



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) //detect upper offset

obj.source.style.top=obj.pagetop-obj.elementoffset+offsetfromedge+"px";

else if (obj.pagetop+obj.docheight<obj.elementoffset+parseInt(obj.source.height)) //lower offset

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

}