// browser css check

var name = navigator.appName
 if (name == "Microsoft Internet Explorer")
document.write('<link rel="StyleSheet" href="treehouse_ie.css" TYPE="text/css">');
else
document.write('<link rel="StyleSheet" href="treehouse_nn.css" TYPE="text/css">');

// quick link jumper

function doSel(obj)
{
     for (i = 1; i < obj.length; i++)
        if (obj[i].selected == true)
           eval(obj[i].value);
}

// image preloads

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_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_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];}
}

// popup window

function popupWin(sPicURL) { 
window.open("popup.asp?"+sPicURL, "", "resizable=1,HEIGHT=200,WIDTH=200");
}

// popup menchanism

var arrTemp=self.location.href.split("?"); 
var picUrl = (arrTemp.length>0)?arrTemp[1]:""; 
var NS = (navigator.appName=="Netscape")?true:false; 

function FitPic() { 
  iWidth = (NS)?window.innerWidth:document.body.clientWidth; 
  iHeight = (NS)?window.innerHeight:document.body.clientHeight; 
  iWidth = document.images[0].width - iWidth;
  iHeight = document.images[0].height - iHeight; 
  window.resizeBy(iWidth, iHeight); 
  self.focus(); 
}

// sidebar scroller

var sRepeat=null
function doMarquee(dir, src, amount) {
	if (amount==null) amount=10
	switch (dir) {
	case "up":
		document.all[src].style.pixelTop-=amount
		if (-document.all[src].style.pixelTop>=document.all[src].offsetHeight)
			document.all[src].style.pixelTop=document.all[src].offsetParent.offsetHeight
		break;
	case "down":
		document.all[src].style.pixelTop+=amount
		if (document.all[src].style.pixelTop>document.all[src].offsetParent.offsetHeight)
			document.all[src].style.pixelTop = -document.all[src].offsetHeight
		break;
	case "left":
		document.all[src].style.pixelLeft-=amount
		if (-document.all[src].style.pixelLeft>=document.all[src].offsetWidth)
			document.all[src].style.pixelLeft=document.all[src].offsetParent.offsetWidth
		break;
	case "right":
		document.all[src].style.pixelLeft+=amount
		if (document.all[src].style.pixelLeft>document.all[src].offsetParent.offsetWidth)
			document.all[src].style.pixelLeft = -document.all[src].offsetWidth
		break;
	}
	return false
}

function RunMarquee(sDir,sWhich) {
  clearInterval(sRepeat)
  iAmount=1
  sRepeat = setInterval("doMarquee('"+sDir+"','"+sWhich+"'," + iAmount+")",100)
}

function doLoad() {
  setup()
  window.document.all.s1.ondragstart = new Function("return false")
  RunMarquee("up","s1")
}

window.onload = doLoad

// set up scrollbox (x, y, width, height, id)

content = new scrollBox(391, 139, 208, 285, "content");
scrollCSS();

//legal

function adWin(newwin) {
aWindow=window.open(newwin,"newwin","scrollbars=yes,width=360,height=480");
}

// random image generator for homepage

var x = 0
var y = 0

function StringArray (n) {
  this.length = n;
  for (var i =1; i <= n; i++) {
    this[i] = ' '

  }
}

image = new StringArray(12)
image[0] = 'images/homepage/hp_pic_01.jpg'
image[1] = 'images/homepage/hp_pic_02.jpg'
image[2] = 'images/homepage/hp_pic_03.jpg'
image[3] = 'images/homepage/hp_pic_04.jpg'
image[4] = 'images/homepage/hp_pic_05.jpg'
image[5] = 'images/homepage/hp_pic_06.jpg'
image[6] = 'images/homepage/hp_pic_01.jpg'
image[7] = 'images/homepage/hp_pic_02.jpg'
image[8] = 'images/homepage/hp_pic_03.jpg'
image[9] = 'images/homepage/hp_pic_04.jpg'
image[10] = 'images/homepage/hp_pic_05.jpg'
image[11] = 'images/homepage/hp_pic_06.jpg'

var ran = 60/image.length

function generate() {
  x = new Date()
  y = x.getSeconds()
  y = Math.floor(y/ran)
    return(image[y])
}