// JavaScript Document

function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
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];}
}
function displayProductInViewer(smallURL, itemCode, itemSize, itemCost, description, thumbURL) { //loads product stats for the selected image into the viewer layer
	document.getElementById('productImage').src = smallURL;
	document.getElementById('productDescription').innerHTML = description;
	document.getElementById('productSize').innerHTML = itemSize+" (inches)";
	document.getElementById('productCode').innerHTML = "#"+itemCode;
	document.getElementById('productPrice').innerHTML = "$"+itemCost;
	document._xclick.item_name.value = description;
	document._xclick.amount.value = itemCost;
}

function getWindowHeight() {
    var height = 0;
    if (typeof window.innerHeight != 'undefined')
	{
		height = window.innerHeight;
    }
    else if (typeof document.documentElement != 'undefined' &&
             typeof document.documentElement.clientWidth != 'undefined' &&
             document.documentElement.clientWidth != 0)
    {
     height = document.documentElement.clientHeight;
    }
    else
    {
     height = document.getElementsByTagName('body')[0].clientHeight;
    }
    
    return height;    
}

function getWindowWidth() {
    var width = 0;
    if (typeof window.innerWidth != 'undefined')
	{
		width = window.innerWidth;
    }
    else if (typeof document.documentElement != 'undefined' &&
             typeof document.documentElement.clientWidth != 'undefined' &&
             document.documentElement.clientWidth != 0)
    {
     width = document.documentElement.clientWidth;
    }
    else
    {
     width = document.getElementsByTagName('body')[0].clientWidth;
    }
    
    return width;    
}

function positionLayers( scalingFactor ) {
	var View = document.getElementById? document.getElementById('viewer'): document.all? document.all['viewer']: null;
	var Choose = document.getElementById? document.getElementById('chooser'): document.all? document.all['chooser']: null;
	var windowHeight = getWindowHeight();
	var windowWidth = getWindowWidth();
		if (View && Choose) {
			View.style.width = Math.round(windowWidth * scalingFactor) + "px";
			ViewHorizMarginSetting = Math.round((windowWidth - parseInt(View.style.width))/2) + "px";
			View.style.marginRight = ViewHorizMarginSetting;
			View.style.marginLeft = ViewHorizMarginSetting;
			Choose.style.width = Math.round(windowWidth * scalingFactor) + "px";
			ChooseHorizMarginSetting = Math.round((windowWidth - parseInt(Choose.style.width))/2) + "px";
			Choose.style.marginRight = ChooseHorizMarginSetting;
			Choose.style.marginLeft = ChooseHorizMarginSetting;
		}
}