// Dynamically write Stylesheet references for IE and NS
if ((navigator.appName == "Netscape") && (parseInt(navigator.appVersion) < 5 )){
		document.writeln('<link rel="stylesheet" href="_styles_ns.css" type="text/css">')
}else{
		document.writeln('<link rel="stylesheet" href="_styles.css" type="text/css">')
}

// **************************************************
// *************** Keyword Selector *****************
// **************************************************

function TANK_search(word) {
	var content = document.forms[0].imageKeywords.value;
	var ar_contents = content.split(", ");
	var exists = 0;
	
	for (loop=0; loop < ar_contents.length; loop++) {
		if (ar_contents[loop] == word) {
				var exists = 1;
		}
	}
	
	if (exists != 1) {
		if (content != "") {
			var content = content + ", " + word;
		} else {
			var content = word;
		}
	} 
	
	document.forms[0].imageKeywords.value = content;
	var exists = 0;
}

// Filter line breaks
function filterLineBreaks (ta) {
  ta.value = ta.value.replace(/\r\n|\r|\n/g, ' ');
}

// Disable right-click menu
overImage=0;
function mouseDown(e) {
 var clickType=1;
 var tgt="";
 if (parseInt(navigator.appVersion)>3) {
  if (navigator.appName=="Netscape") {
   clickType=e.which;
   tgt=""+e.target;
   if (tgt.length!=0 && tgt.charAt(tgt.length-1)=="#") 
    overImage=1;
  }
  else {
   clickType=event.button;
   if (""+event.srcElement.className=="disabledMenu")
    overImage=1;
  }
  if (clickType!=1 && overImage) {
   alert ('Right-click menu is disabled for this image.')
   return false;
  }
 }
 return true;
}
if (parseInt(navigator.appVersion)>3) {
 document.onmousedown = mouseDown;
 if (navigator.appName=="Netscape") 
  document.captureEvents(Event.MOUSEDOWN);
}

function TANK_openAddWindow(url) {
	window.open(url,'addimage','width=550,height=650,top=0,left=50,scrollbars=yes,resizable=yes');
}

// Open Window function for centering on screen
var win = null;
function TANK_openWindow(url){
LeftPosition = (screen.width) ? (screen.width-600)/2 : 0;
TopPosition = (screen.height) ? (screen.height-300)/2 : 0;
settings =
'height=400,width=700,top='+TopPosition+',left='+LeftPosition+',scrollbars=yes,resizable=yes'
win = window.open(url,'displayimage',settings)
if(win.window.focus){win.window.focus();}
}

// *****************************************************
// *************** Inline Image Display ****************
// *****************************************************

function NYK_displayLge(newText,e,cl) {
	objName = 'picWin';
	x='';
	//e = event;
	
	// Mouse Position -------------
	if (document.all) { // IE
		yPos = window.event.y+document.body.scrollTop;
		xPos = window.event.x;
	} else { // NS4+
		yPos = e.pageY;
		xPos = e.pageX;
	}
	
	// Layer Position and Image Tag
	if ((obj=MM_findObj(objName))!=null) with (obj)	
    if (document.layers) { //NS4
		// NS4 dimensions -------------
		maxWidth = 450;
		maxHeight = 450;
		var win = window.open('ns4_pop.htm','ns4pop','width='+maxWidth+',height='+maxHeight);
		var html = '<html><head></head><body leftmargin="0" topmargin="0" marginwidth="0" marginheight="0" bgcolor="#000000">';
		html += '<table width="100%" height="100%" border="0" cellpadding="0" cellspacing="0"><tr><td align="center">';
		html += '<img src="' + newText + '">';
		html += '</td></tr></table></body></html>';
		win.document.open();
		win.document.write(html);
		win.document.close();
	} else { // IE + NS6+
		// HTML (test for close option)
		if (cl != 1) {
			newText = '<table border="1" cellpadding="5" cellspacing="0" bordercolor="#FFFFFF" bgcolor="#000000"><tr><td bgcolor="#4D6C7D"><a href="#" onCLick="NYK_displayLgeClose(); return false;"><b style="color: #000000;">close</b></a></td></tr><tr><td><img src="' + newText + '"></td></tr></table>';
		}
		innerHTML = unescape(newText);
		obj.style.left=xPos;
		obj.style.top=yPos;
	}
}

function NYK_displayLgeClose() {
	NYK_displayLge('<img src=\'images/spacer.gif\'>','',1);
}

// **************************************************
// *************** General Functions ****************
// **************************************************

function MM_findObj(n, d) { //v4.0
  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 && document.getElementById) x=document.getElementById(n); return x;
}

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_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 tmt_findObj(n){
	var x,t; if((n.indexOf("?"))>0&&top.frames.length){t=n.split("?");
	x=eval("top.frames['"+t[1]+"'].document.getElementById('"+t[0]+"')");
	}else{x=document.getElementById(n)}return x;
}

function MM_showHideLayers() { //v6.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }
    obj.visibility=v; }
}

hideIt = true;
function hideLayerDelay() {
	if(hideIt) {
		MM_showHideLayers('navLayer','','hide');
	}
}

// ****************************************************
// ****************  Image Fade Effect ****************
// ****************************************************

var step = 20;
var delay = 100;
function fadeImageIn (img) {
	//delay += 100;
  if (document.all || navigator.appName == 'Netscape' && parseFloat
(navigator.appVersion) >= 5) {
    img.opacity = 0;
    setOpacity(img.name);
  }
}
function fadeImageOut (img, delay) {
  if (document.all || navigator.appName == 'Netscape' && parseFloat
(navigator.appVersion) >= 5) {
    img.opacity = 100;
    setOpacity(img.name, -step, delay);
  }
}
function setOpacity (imgName, step, delay) {
  if (!step)
    step = window.step;
  if (!delay)
    delay = window.delay;
  var img = document.images[imgName];
  img.opacity += step;
  if (document.all)
    img.style.filter = 'alpha(opacity = ' + img.opacity + ')';
  else if (navigator.appName == 'Netscape' &&
parseFloat(navigator.appVersion) >= 5)
    img.style.MozOpacity = img.opacity + '%';
  if (step > 0 && img.opacity < 100 || step < 0 && img.opacity > 0)
    setTimeout('setOpacity("' + img.name + '",' + step + ', ' + delay 
+ ')', delay);
}

// ****************************************************
// *************  Print Detail Selection **************
// ****************************************************

// populate the size pulldown
function TANK_writeSize() {
	for (i=0; i<ar_size.length; i++) {
		document.write('<option value="' + i + '">' + ar_size[i] + '</option>' + '\n');
	}
}
// this variable gets set by the pulldown and is the index
// for all radiobuttons to compare against
var currentSize = 0;

// PrintSize and description are hidden fields to be passed to the cart
function TANK_writePrice() {
	if (document.forms[0].type[0].checked == true){
		document.forms[0].PrintPrice.value = ar_priceFrame[currentSize];
		document.forms[0].description.value = 'Framed';
	}
	
	if (document.forms[0].type[1].checked == true){
		document.forms[0].PrintPrice.value = ar_priceMatt[currentSize];
		document.forms[0].description.value = 'Matt: ' + ar_sizeMatt[currentSize] + ' cm';
	}
	
	if (document.forms[0].type[2].checked == true){
		document.forms[0].PrintPrice.value = ar_pricePrint[currentSize];
		document.forms[0].description.value = 'Print only';
	}
	
	document.forms[0].PrintSize.value = ar_size[currentSize];
	document.forms[0].MattSizeDisplay.value = ar_sizeMatt[currentSize];
	document.forms[0].SizeID.value = ar_size_id[currentSize];
}

function TANK_writeDelivery(val) {
	//---- Get Subtotal and init Delivery Cost
	var subtotal = eval(document.frmDelivery.subtotal.value);
	var delCost = 0;
	
	//---- Get right delivery cost
	switch(val) {
	case "1": if (subtotal>150) { delCost=25; } else { delCost=15; } break;
	case "2": if (subtotal>150) { delCost=40; } else { delCost=30; } break;
	case "3": if (subtotal>150) { delCost=60; } else { delCost=40; } break;
	case "4": if (subtotal>150) { delCost=75; } else { delCost=50; } break;
	}
	
	//---- Calculate total
	var total = subtotal + delCost;
	
	//---- find Objects
	objDeliveryField=MM_findObj('deliveryField');
	objTotalField=MM_findObj('totalField');
	
	//---- IE & NS6+
	if (!document.layers) {
		objDeliveryField.innerHTML = delCost + ".00";
		objTotalField.innerHTML = total;	
	} else { //---- NS4.x
		objDeliveryField.document.write(delCost + ".00"); document.close();
		objTotalField.document.write(total); document.close();
	}
	
	//---- Set form field for delivery cost in sendmail form
	document.frmSendmail.delCost.value = delCost;
}