var curpg = 0;
var imgIsLoaded = false;
var arrPreload = new Array();
var _PRELOADRANGE = 5;
var image_string = "";
var slide_string = "";


function preload()
{
	for (var i=0; i<npage; i++) 
	{
		arrPreload[i] = new Image();
		arrPreload[i].src = images[i];
	} 
	
	for (var j=0; j<npage; j++) 
	{
		arrPreload[i+j] = new Image();
		arrPreload[i+j].src = images[j];
	} 
	for (var k=0; k<12; k++) 
	{
		arrPreload[i+j+k] = new Image();
		arrPreload[i+j+k].src = misc[j];
	} 
forward_(); 
}

function changeSlide()
{   image_string  = "";
	slide_string  = "";
	image_string  = "<img src=\"" + images[curpg-1] + "\" width=\"243\" height=\"161\" border=\"0\">";
	slide_string  = "<img src=\"" + logos[curpg-1] + "\" width=\"243\" height=\"161\" border=\"0\">";

    var object=document.getElementById('imgop');
	object.innerHTML= image_string;
	
	
    var object1=document.getElementById('slide');
	object1.innerHTML= slide_string;
	image();
}

function forward_()
{
    if(curpg < npage)
	 {  curpg++;
	 	changeSlide();		
	 }
}

function rewind()
{
    if(curpg > 1)
	 {  curpg--;
	 	changeSlide();		
	 }
}

function fetch_object(idname)
{	if (document.getElementById)
		return document.getElementById(idname);
	else if (document.all)
		return document.all[idname];
	else if (document.layers)
		return document.layers[idname];
	else
		return null;
}

function toggle_on(objid)
{
	obj = fetch_object('collapseobj_' + objid);

	if (!obj)
	return false;

	else
	{
		obj.style.display = '';
	}
	return false;
}

function toggle_off(objid)
{
	obj = fetch_object('collapseobj_' + objid);
	
		if (!obj)
	{
		return false;
	}

	else
	{
		obj.style.display = 'none';
	 }
	return false;
}

function showpage()
{
	var pageno = "";
    var a=0;
	if (npage>1)
		{
			for(a=1;a<=npage;a++)
			 if	(a==curpg) pageno +="<img src=\"pics/dot2.PNG\">" ;
			 else  pageno +="<img src=\"pics/dot3.PNG\">" ;
			 
			 pageno+= '<font face="verdana" color="#999999" size="1"><br>'+curpg+'/'+npage +'</font>';
		}
			document.getElementById("imgp").innerHTML = pageno;
	}
	
function image()
{
 if (curpg==1)
 toggle_off('a');
 if (curpg==2)
 toggle_on('a');
 if (curpg==npage-1)
 toggle_on('b');
 if (curpg==npage)
 toggle_off('b'); 
 
 showpage();
}

//for image swapinf on mouse over		
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];}
}