// JavaScript Document
var Divs = new Array();
var Toggles = new Array();
function slide(num, flag){
	obj = Divs[num];
	window.clearTimeout(obj.motion);
	var step=15;
	uobj = obj.getElementsByTagName('UL')[0];
	oht = obj.style.height;
	oht = oht.substring(0, oht.indexOf('px'));
	oht = parseInt(oht);
 	uht = uobj.offsetHeight;
  		if(flag>0){
    		step*=(1-oht/uht);
    		step = Math.ceil(step);
    	while ((step-1) > (uht-oht))
      		step--;
    		oht+=step;
    		obj.style.height= oht + 'px';
    		uobj.style.top = oht-uht;
    	if(oht!=uht)
      		obj.motion = window.setTimeout("slide("+ num +","+ flag +")", 83);
    	else
      		window.clearTimeout(obj.motion);
  } 
  		else {
    		step*=(oht/uht);
    		step = Math.ceil(step);
    	while (step-1 > oht)
      		step--;
    		oht-=step;
    		obj.style.height= oht + 'px';
    		uobj.style.top = oht-uht;
    	if(oht!=0){
      		obj.motion = window.setTimeout("slide("+ num +","+ flag +")", 83);
    } 
		else {
      		window.clearTimeout(obj.motion);
    }
  }
}
 
function initcolla () {
  	var j = 0;
  	var i;
	for (i=0; i<document.getElementsByTagName('DIV').length; i++ ) {
    	if(document.getElementsByTagName('DIV')[i].className=="colla"){
      		Divs[j] = document.getElementsByTagName('DIV')[i];
      		Divs[j].motion=false;
      		Divs[j].style.height="0px";
			ul = Divs[j].getElementsByTagName('UL')[0];
      		ul.style.top = -1*(ul.offsetHeight+ul.offsetTop) + 'px';
      j++;
    }
  }
  j = 0;
	for (i=0; i<document.getElementsByTagName('A').length; i++ ) {
    	if(document.getElementsByTagName('A')[i].className=="colla"){
      		Toggles[j] = document.getElementsByTagName('A')[i];
      		Toggles[j].flag = 1;
      		Toggles[j].j=j;
      		Toggles[j].onclick = function () {
      		slide(this.j, this.flag);
      		this.flag*=-1;
      }
      j++;
    }
  }
}