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];}
}

function Send_Mail_Form(form)
{
	if (trim(form.form_name.value) == '') 
	{
		alert('Please include your name.');
		form.form_name.value = "";
		form.form_name.focus();
		return false;
	}
			
	checkEmail = form.form_email.value
	if ((checkEmail.indexOf('@') < 0) || ((checkEmail.charAt(checkEmail.length-4) != '.') && (checkEmail.charAt(checkEmail.length-3) != '.'))) 
	{
		alert("Please include a Valid e-mail address.");
		if(trim(form.form_email.value) == '')
			form.form_email.value = "";
		else
			form.form_email.select();
		form.form_email.focus();
		return false;
	} 
	
	if (trim(form.form_message.value) == '') 
	{
		alert('Please include a message.');
		form.form_message.value = "";
		form.form_message.focus();
		return false;
	}
		
	else 
	{
		return true;
	}
}

var win=null;
function NewWindow(mypage,myname,w,h,pos,infocus)
{
	if(pos=="random")
	{
		myleft=(screen.width)?Math.floor(Math.random()*(screen.width-w)):100;mytop=(screen.height)?Math.floor(Math.random()*((screen.height-h)-75)):100;
	}
	if(pos=="center")
	{
		myleft=(screen.width)?(screen.width-w)/2:100;mytop=(screen.height)?(screen.height-h)/2:100;
	}
	else if((pos!='center' && pos!="random") || pos==null)
	{
		myleft=0;
		mytop=20;
	}
	settings="width=" + w + ",height=" + h + ",top=" + mytop + ",left=" + myleft + ",scrollbars=yes,location=no,directories=no,status=no,menubar=no,toolbar=no,resizable=no";win=window.open(mypage,myname,settings);
	win.focus();
}

function trim(inputString) 
{
	// Removes leading and trailing spaces from the passed string. Also removes
	// consecutive spaces and replaces it with one space. If something besides
	// a string is passed in (null, custom object, etc.) then return the input.
	if (typeof inputString != "string") 
		return inputString;
	var retValue = inputString;
	var ch = retValue.substring(0, 1);
	while (ch == " ") 
	{ // Check for spaces at the beginning of the string
	  	retValue = retValue.substring(1, retValue.length);
	  	ch = retValue.substring(0, 1);
	}
	ch = retValue.substring(retValue.length-1, retValue.length);
	while (ch == " ") 
	{ // Check for spaces at the end of the string
	  	retValue = retValue.substring(0, retValue.length-1);
	  	ch = retValue.substring(retValue.length-1, retValue.length);
	}
	while (retValue.indexOf("  ") != -1) 
	{ // Note that there are two spaces in the string - look for multiple spaces within the string
	  	retValue = retValue.substring(0, retValue.indexOf("  ")) + retValue.substring(retValue.indexOf("  ")+1, retValue.length); // Again, there are two spaces in each of the strings
	}
	return retValue; // Return the trimmed string back to the user
}

function Img_Swap(path,title)
{
	document.getElementById('img_holder').src = path;
	document.getElementById('img_title').innerHTML = 'Image ' + title;
}

function next_group()
{
	if(next_page<=num_pages)
	{
		start_point = (end_point + 1);
		var check = 'on';
		
		for(var x=0; x < num_thumbs; x++)
		{
			var next = (start_point + x);
			if(next > num_photos)
			{
				document.getElementById('thumb_holder_' + (x+1)).innerHTML = '<img src="images/spacer.gif" height="50" width="75" />';
				if(check == 'on')
				{
					check = 'off';
					end_point = num_photos;
				}
			}
			else
			{
				document.getElementById('thumb_holder_' + (x+1)).innerHTML = '<a href="javascript:NewWindow(\'includes/large_view.php?path='+original_imgs[(next - 1)]+'\',\'Diane_Matzner\',\'1000\',\'800\',\'center\',\'front\')" onmouseover="javascript:Img_Swap(\''+lg_imgs[(next - 1)]+'\', \''+next+'\')"><img src="'+sm_imgs[(next - 1)]+'" id="img_'+x+'" class="thumb" /></a>';
				end_point = next;
			}
		}
		document.getElementById('img_holder').src = lg_imgs[(start_point-1)];
		document.getElementById('img_title').innerHTML = 'Image ' + start_point;
		
		if(end_point == num_photos)
		{
			document.getElementById('prev').innerHTML = '<a href="javascript:prev_group()"><img src="images/prev.jpg" border="0" /></a>';
			document.getElementById('next').innerHTML = '<img src="images/spacer.gif" width="54" height="16" />';
		}
		else if(start_point == 1)
		{
			document.getElementById('prev').innerHTML = '<img src="images/spacer.gif" width="54" height="16" />';
			document.getElementById('next').innerHTML = '<a href="javascript:next_group()"><img src="images/next.jpg" border="0" /></a>';
		}
		else
		{
			document.getElementById('prev').innerHTML = '<a href="javascript:prev_group()"><img src="images/prev.jpg" border="0" /></a>';
			document.getElementById('next').innerHTML = '<a href="javascript:next_group()"><img src="images/next.jpg" border="0" /></a>';
		}
		curr_page++;
		prev_page++;
		next_page++;
	}
}

function prev_group()
{
	if(prev_page>=1)
	{
		end_point = (start_point - 1);
		start_point = (start_point - num_thumbs);
		var check = 'on';
		
		for(var x=0; x < num_thumbs; x++)
		{
			var next = (start_point + x);
			if(next > num_photos)
			{
				document.getElementById('thumb_holder_' + (x+1)).innerHTML = '<img src="images/spacer.gif" height="50" width="75" />';
				if(check == 'on')
				{
					check = 'off';
					end_point = num_photos;
				}
			}
			else
			{
				document.getElementById('thumb_holder_' + (x+1)).innerHTML = '<a href="javascript:NewWindow(\'includes/large_view.php?path='+original_imgs[(next - 1)]+'\',\'Diane_Matzner\',\'1000\',\'800\',\'center\',\'front\')" onmouseover="javascript:Img_Swap(\''+lg_imgs[(next - 1)]+'\', \''+next+'\')"><img src="'+sm_imgs[(next - 1)]+'" id="img_'+x+'" class="thumb" /></a>';
				end_point = next;
			}
		}
		document.getElementById('img_holder').src = lg_imgs[(start_point-1)];
		document.getElementById('img_title').innerHTML = 'Image ' + start_point;
		
		if(end_point == num_photos)
		{
			document.getElementById('prev').innerHTML = '<a href="javascript:prev_group()"><img src="images/prev.jpg" border="0" /></a>';
			document.getElementById('next').innerHTML = '<img src="images/spacer.gif" width="54" height="16" />';
		}
		else if(start_point == 1)
		{
			document.getElementById('prev').innerHTML = '<img src="images/spacer.gif" width="54" height="16" />';
			document.getElementById('next').innerHTML = '<a href="javascript:next_group()"><img src="images/next.jpg" border="0" /></a>';
		}
		else
		{
			document.getElementById('prev').innerHTML = '<a href="javascript:prev_group()"><img src="images/prev.jpg" border="0" /></a>';
			document.getElementById('next').innerHTML = '<a href="javascript:next_group()"><img src="images/next.jpg" border="0" /></a>';
		}
		curr_page--;
		prev_page--;
		next_page--;
	}
}