function get_object(id) {
	var object = null;
	if( document.layers )	{
		object = document.layers[id];
	} else if( document.all ) {
		object = document.all[id];
	} else if( document.getElementById ) {
		object = document.getElementById(id);
	}
	return object;
}

function replace_html(id, new_content) {
	get_object(id).innerHTML = new_content;
}

function clear_html(id) {
	get_object(id).innerHTML = '<span></span>';
}

function show_progress_bar(id) {
	replace_html(id, '<div style="top: 5px; right: 5px; position: absolute; font-family: Verdana, Arial; font-size: 12px;"><img src="./image/loading.gif" align="absbottom"> loading...</div>');
}

function hide_progress_bar(id) {
	clear_html(id);
}




function createRequestObject() {
   var req;
   if(window.XMLHttpRequest){
      req = new XMLHttpRequest();
   } else if(window.ActiveXObject) {
      req = new ActiveXObject("Microsoft.XMLHTTP");
   } else {
      alert('Problem creating the XMLHttpRequest object');
   }
   return req;

}

function handleDivTag(divtag)
{
   var divtag;
   return divtag;
}

var http = createRequestObject();

var divhandler = new handleDivTag(null);

function sendRequest(script,data,divtag) {
   

   //get_object(divtag);
   //show_progress_bar(divtag);
   
   http.open('GET', script+'?'+data);
   http.onreadystatechange = handleResponse;
   divhandler.divtag = divtag;
   http.send(null);

}

function handleResponse() {
   if(http.readyState == 1) {
   
   document.getElementById('progress').innerHTML = '<div style="top: 5px; right: 5px; position: absolute; "><img src="./image/loading.gif" align="absmiddle"> loading</div>';   
   }
   
   
   if(http.readyState == 4 && http.status == 200){
   
      var response = http.responseText;

      if(response) {
         document.getElementById(divhandler.divtag).innerHTML = response;
	 document.getElementById('progress').innerHTML = '';
      }

   }

} 


function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}



var slideTimeBetweenSteps = 50;	// General speed variable (Lower = slower)


var scrollingContainer = false;
var scrollingContent = false;
var containerHeight;
var contentHeight;	

var contentObjects = new Array();
var originalslideSpeed = false;
function slideContent(containerId)
{
	var topPos = contentObjects[containerId]['objRef'].style.top.replace(/[^\-0-9]/g,'');
	topPos = topPos - contentObjects[containerId]['slideSpeed'];
	if(topPos/1 + contentObjects[containerId]['contentHeight']/1<0)topPos = contentObjects[containerId]['containerHeight'];
	contentObjects[containerId]['objRef'].style.top = topPos + 'px';
	setTimeout('slideContent("' + containerId + '")',slideTimeBetweenSteps);
	
}

function stopSliding()
{
	var containerId = this.id;
	contentObjects[containerId]['slideSpeed'] = 0;	
}

function restartSliding()
{
	var containerId = this.id;
	contentObjects[containerId]['slideSpeed'] = contentObjects[containerId]['originalSpeed'];
	
}
function initSlidingContent(containerId,slideSpeed)
{
	scrollingContainer = document.getElementById(containerId);
	scrollingContent = scrollingContainer.getElementsByTagName('DIV')[0];
	
	scrollingContainer.style.position = 'relative';
	scrollingContainer.style.overflow = 'hidden';
	scrollingContent.style.position = 'relative';
	
	scrollingContainer.onmouseover = stopSliding;
	scrollingContainer.onmouseout = restartSliding;
	
	originalslideSpeed = slideSpeed;
	
	scrollingContent.style.top = '0px';
	
	contentObjects[containerId] = new Array();
	contentObjects[containerId]['objRef'] = scrollingContent;
	contentObjects[containerId]['contentHeight'] = scrollingContent.offsetHeight;
	contentObjects[containerId]['containerHeight'] = scrollingContainer.clientHeight;
	contentObjects[containerId]['slideSpeed'] = slideSpeed;
	contentObjects[containerId]['originalSpeed'] = slideSpeed;
	
	slideContent(containerId);
	
}