var newline = "\n";

function clearDefault(el) {
  if (el.defaultValue==el.value) el.value = ""
}

function getSel()
{
	if (document.getSelection) txt = document.getSelection();
	else if (document.selection) txt = document.selection.createRange().text;
	else return;

	document.update.blogEntry.value = document.update.blogEntry.value+txt.replace(new RegExp('([\\f\\n\\r\\t\\v ])+', 'g')," ");
}

function insert_tag(field, tag, insert_word) {

	if (document.selection) 
	{
		//ie
		field.focus();
		sel = document.selection.createRange();
		if (sel.text == "") { sel.text = tag; } else { sel.text = tag.replace(insert_word, sel.text);}
		
	} else if (field.selectionStart || field.selectionStart == '0') {
	
		//moz
		var start = field.selectionStart;
		var end = field.selectionEnd;
		var selection = field.value.substring( start , end);
		var styled_tag = tag.replace(insert_word, selection);
		
		var beginning = field.value.substring(0, start)
		var ending = field.value.substring(end, field.value.length);
		if (selection == "") { field.value = beginning + tag + ending; } else { field.value = beginning + styled_tag + ending;}
		
	} else {
	
		//stick it at the end
		field.value += tag;
	}
	
	
}

function change_text(message, id, underscore_strip)
{
	if (underscore_strip == "y")
	{
		var message = message.replace("_", "'");
	}
	
	document.getElementById(id).innerHTML = message;
}

function spellChange(text, word, correction, feedback_element)
{
	//strip out the underscores that were placeholders for apostrophes in the word and correction
	var correction = correction.replace("_", "'");
	var word = word.replace("_", "'");

	//create the new text string with corrections made to replace the old entry text
	var newText = text.replace(word, correction);

	//print feedback to the screen for the user
	if (feedback_element != "") 
	{	

	var message = word + " replaced by " + correction + " in your journal!";
	change_text(message, feedback_element);
	
	}
	
	//send the new corrected entry back to the browser
	return newText;
}

function sendvalueToWindow(cookieName, cookieValue, url, w, h, windowName, path, expDays)
{

	var exp = new Date(); 
	exp.setTime(exp.getTime() + (expDays*24*60*60*1000));
	var path = '/';

	setCookie(cookieName, cookieValue, exp, path);
	openWindow(url, w, h, windowName, 'no')

}

//this function resizes div by id on window resize
function resizeElement(id, topOffSet) 
{ 
	var x,y;
	if (self.innerHeight) // all except Explorer
	{
		x = self.innerWidth;
		y = self.innerHeight;
	}
	else if (document.documentElement && document.documentElement.clientHeight)
		// Explorer 6 Strict Mode
	{
		x = document.documentElement.clientWidth;
		y = document.documentElement.clientHeight;
	}
	else if (document.body) // other Explorers
	{
		x = document.body.clientWidth;
		y = document.body.clientHeight;
	}

	
	document.getElementById(id).style.height = (y - topOffSet)+'px';
}

//this function is used to make rollovers or replace any images src by id
function replaceImage(src, id, parent)
{
	if (parent != "y")
	{
 		document.getElementById(id).src = src;
		
	} else {
	
		window.opener.document.getElementById(id).src = src;
	}
}

//add text to a section by id
function addText(text, id, parent, replace)
{

	if (parent != "y")
	{

		var orig_text = document.getElementById(id).innerHTML;
		
 		if (replace == "y")
		{
			document.getElementById(id).innerHTML = text;
		} else {
			document.getElementById(id).innerHTML = orig_text + ' ' +text;
		}
	} else {

		var orig_text = window.opener.document.getElementById(id).innerHTML;
		
		if (replace == "y")
		{
			window.opener.document.getElementById(id).innerHTML =  text;
		} else {
			window.opener.document.getElementById(id).innerHTML =  orig_text + ' ' + text;
		}
		
	}
}

var pos=0; 

function scrollText(text) 
{ 
//sets teh scrollbar ett and scroll sit when used on interval 
//e.g. onclick="setInterval('scrollText(\'Herello here is long string of tejlkjs dk lkadsjlk \')', 100);return false;"
  document.title=text.substring(pos,text.length)+text.substring(0,pos);
  pos=(pos+1)%text.length;
} 


function rollSize(id, size)
{
	if (size != "")
	{
		document.getElementById(id).style.width = size + 'px';
	} else {
		document.getElementById(id).style.width = 'auto';
	}
}



function toggleClass(id, oldClass, newClass, cookie)
{
	
	var oldCookie = (getCookie(cookie) != null)? getCookie(cookie) : null;

	if (oldCookie != null)
	{
		if ((oldCookie).indexOf(id + ':') != -1)
		{
			removeId = oldCookie.replace(id + ":",  "");
			setCooky(cookie, removeId, null, "/");
			if (removeId == "") {deleteCooky(cookie);}
			document.getElementById(id).className = oldClass;
		} else {
		
			setCooky(cookie, oldCookie + id + ":", null, "/");
			document.getElementById(id).className = newClass;
		
		}
		
	 } else {
	 
		setCooky(cookie, id + ":", null, "/");
		document.getElementById(id).className = newClass;
	}

}

function toggleCookie(cookie, img, on_src, off_src)
{

	var oldCookie =  getCookie(cookie);

	if (oldCookie != null)
	{
		if(oldCookie =="y")
		{
			setCooky(cookie, "n", null, "/");
			if (img == "y") {document.getElementById(cookie).src = off_src;}

		} else {
			setCooky(cookie, "y", null, "/");
			if (img == "y") {document.getElementById(cookie).src = on_src;}
		}
	} else {
		setCooky(cookie, "y", null, "/");
		if (img == "y") {document.getElementById(cookie).src = on_src;}
	}
	

}

function scrollPos(axis){
	var x,y;
	if (self.pageYOffset) // all except Explorer
	{
		x = self.pageXOffset;
		y = self.pageYOffset;
	} else if (document.documentElement && document.documentElement.scrollTop)
		// Explorer 6 Strict
	{
		x = document.documentElement.scrollLeft;
		y = document.documentElement.scrollTop;
		
	} else if (document.body) // all other Explorers
	{
		x = document.body.scrollLeft;
		y = document.body.scrollTop;
	}
	
	if (axis == "x") {return x; } else {return y;}
	
}


function moveWithScroll(id, axis, offset)
{
	var pos = scrollPos(axis) + offset;
	if (axis == "y"){	document.getElementById(id).style.top = pos + "px"; }
	if (axis == "x"){	document.getElementById(id).style.left = pos + "px"; }
	document.getElementById(id).style.zIndex = '10';

}


//this script had to be redone for xhtml 1 transitional - now it works
var ie=document.all
var moz=document.getElementById&&!document.all

var dragable=false
var z,x,y

function drag(e){
	if (dragable){
		z.style.left=moz? (temp1+e.clientX-x) + "px": (temp1+event.clientX-x) + "px";
		z.style.top=moz? (temp2+e.clientY-y) + "px" : (temp2+event.clientY-y) + "px";
		return false
	}
}

function makeDragable(e){
	if (!ie&&!moz) {return;} //escape if not using a drag capable browser
	
	var obj=moz? e.target : event.srcElement;
	
	while (obj.className!="dragme")
	{
		obj=moz? obj.parentNode : obj.parentElement;
	}
	
	if (obj.className=="dragme"){
		dragable=true;
		z=obj;
		temp1=parseInt(z.style.left+0);
		temp2=parseInt(z.style.top+0);
		x=moz? e.clientX: event.clientX;
		y=moz? e.clientY: event.clientY;
		document.onmousemove=drag;
		return false;
	}
}



function write_flash(file, id, parent, replace)
{
var flash = '<object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" codebase="http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,0,0" ><param name="allowScriptAccess" value="sameDomain" /><param name="movie" value="../users/' + file + '" /><embed src="../users/' + file + '" name="flash" allowScriptAccess="sameDomain" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer" /></object>';
		

	addText(flash, id, parent, replace);

}

function write_tags(tag, formName, formField, parent)
{

	if (parent != "y")
	{
		document.update.blogEntry.value = document.update.blogEntry.value + "\n" + tag + "\n";
	} else {
		window.opener.document.update.blogEntry.value = window.opener.document.update.blogEntry.value + "\n" + tag + "\n";
	}
}

function write_media(file, id, type, parent, replace)
{

	if (type == "image")
	{
		var media = '<img src="../users/' + file + '"  /><br />';
		
	} else if (type == "flash") {
	
		var media = '<object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" codebase="http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,0,0" ><param name="allowScriptAccess" value="sameDomain" /><param name="movie" value="../users/' + file + '" /><embed src="../users/' + file + '" name="flash" allowScriptAccess="sameDomain" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer" /></object><br />';
		
	} else if (type == "sounds") {
	
		var media = '<embed src="../users/' + file + '" autoplay="true" style="width: 200px; height: 50px;" /><br />'
	} 
	
	addText(media, id, parent, replace);
}



setCooky('js', 'y', null, '/');