// Place your application-specific JavaScript functions and classes here
// This file is automatically included by javascript_include_tag :defaults

Object.extend(Element, {
	twisty: function(element, target, trigger) {
		element = $(element);
		target = $(target);
		trigger = $(trigger);

		// use a default action to find the node to hide/show
		trigger.innerHTML = (target.style.display == 'none') ? '▼' : '►'
		Element.toggle(target);
		return false;
	}
});


/*
 * Some behaviour extensions
 */

var general_rules = {
	'.hover_highlightable' : function(element) {
		element.onmouseover = function() {
			element.className = element.className.replace(/hover_highlightable/, 'hover_highlightable hover_active');
		}

		element.onmouseout = function() {
			element.className = element.className.replace(/hover_highlightable hover_active/, 'hover_highlightable');
		}
	}
};

Behaviour.register(general_rules);


/*
 * Edit button code for text editor
 */

var edButtons = new Array();
var edLinks = new Array();
var edOpenTags = new Array();

function edButton(id, display, tagStart, tagEnd, access, open) {
	this.id = id;			// used to name the toolbar button
	this.display = display;		// label on button
	this.tagStart = tagStart; 	// open tag
	this.tagEnd = tagEnd;		// close tag
	this.access = access;		// set to -1 if tag does not need to be closed
	this.open = open;		// set to -1 if tag does not need to be closed
}
edButtons.push(
	new edButton('Header_1','txt_H1.gif','h1. ','')
);

edButtons.push(
	new edButton('Header_2','txt_H2.gif','h2. ','')
);

edButtons.push(
	new edButton('Header_3','txt_H3.gif','h3. ','')
);

edButtons.push(
	new edButton('Header_4','txt_H4.gif','h4. ','')
);

edButtons.push(
	new edButton('Bold','txt_bold.gif','*','*')
);

edButtons.push(
	new edButton('Italic','txt_italic.gif','_','_')
);
edButtons.push(
	new edButton('Underline','txt_underline.gif','+','+')
);

edButtons.push(
	new edButton('Bulleted_List','txt_bullets.gif','* ','')
);

edButtons.push(
	new edButton('Numbered_List','txt_numbers.gif','# ','')
);

edButtons.push(
	new edButton('Table_Header','tbl_header.gif','|_. ',' |')
);

edButtons.push(
	new edButton('Table_Row','tbl_addRow.gif','|','')
);

edButtons.push(
	new edButton('Highlighter','txt_highlighter.gif','%(highlighter)','%')
);
var extendedStart = edButtons.length;

// below here are the extended buttons


function edShowButton(button, i) {
	if (button.access) {
		var accesskey = ' accesskey = "' + button.access + '"'
	}
	else {
		var accesskey = '';
	}
	switch (button.id) {
		default:
			document.write('<img style="cursor:pointer;" alt="' + button.id + '" title="' + button.id + '" id="' + button.id + '" ' + accesskey + ' class="ed_button" onclick="edInsertTag(edCanvas, ' + i + ');" src="/images/' + button.display + '"	/>&nbsp;');
			break;
	}
}

function edAddTag(button) {
	if (edButtons[button].tagEnd != '') {
		edOpenTags[edOpenTags.length] = button;
		document.getElementById(edButtons[button].id).value = '/' + document.getElementById(edButtons[button].id).value;
	}
}

function edRemoveTag(button) {
	for (i = 0; i < edOpenTags.length; i++) {
		if (edOpenTags[i] == button) {
			edOpenTags.splice(i, 1);
			document.getElementById(edButtons[button].id).value = document.getElementById(edButtons[button].id).value.replace('/', '');
		}
	}
}

function edCheckOpenTags(button) {
	var tag = 0;
	for (i = 0; i < edOpenTags.length; i++) {
		if (edOpenTags[i] == button) {
			tag++;
		}
	}
	if (tag > 0) {
		return true; // tag found
	}
	else {
		return false; // tag not found
	}
}	

// Generate ToolBar
function edToolbar() {
	document.write('<div id="ed_toolbar"><span>');
	for (i = 0; i < extendedStart; i++) {
		edShowButton(edButtons[i], i);
	}
	document.write('</span>');
//	edShowLinks();
	document.write('</div>');
}

// insertion code

function edInsertTag(myField, i) {
	//IE support
	if (document.selection) {
		myField.focus();
			sel = document.selection.createRange();
		if (sel.text.length > 0) {
			sel.text = edButtons[i].tagStart + sel.text + edButtons[i].tagEnd;
		}
		else {
			if (!edCheckOpenTags(i) || edButtons[i].tagEnd == '') {
				sel.text = edButtons[i].tagStart;
				edAddTag(i);
			}
			else {
				sel.text = edButtons[i].tagEnd;
				edRemoveTag(i);
			}
		}
		myField.focus();
	}
	//MOZILLA/NETSCAPE support
	else if (myField.selectionStart || myField.selectionStart == '0') {
		var startPos = myField.selectionStart;
		var endPos = myField.selectionEnd;
		var cursorPos = endPos;
		var scrollTop = myField.scrollTop;
		if (startPos != endPos) {
			myField.value = myField.value.substring(0, startPos)
										+ edButtons[i].tagStart
										+ myField.value.substring(startPos, endPos) 
										+ edButtons[i].tagEnd
										+ myField.value.substring(endPos, myField.value.length);
			cursorPos += edButtons[i].tagStart.length + edButtons[i].tagEnd.length;
		}
		else {
			if (!edCheckOpenTags(i) || edButtons[i].tagEnd == '') {
				myField.value = myField.value.substring(0, startPos) 
											+ edButtons[i].tagStart
											+ myField.value.substring(endPos, myField.value.length);
				edAddTag(i);
				cursorPos = startPos + edButtons[i].tagStart.length;
			}
			else {
				myField.value = myField.value.substring(0, startPos) 
											+ edButtons[i].tagEnd
											+ myField.value.substring(endPos, myField.value.length);
				edRemoveTag(i);
				cursorPos = startPos + edButtons[i].tagEnd.length;
			}
		}
		myField.focus();
		myField.selectionStart = cursorPos;
		myField.selectionEnd = cursorPos;
		myField.scrollTop = scrollTop;
	}
	else {
		if (!edCheckOpenTags(i) || edButtons[i].tagEnd == '') {
			myField.value += edButtons[i].tagStart;
			edAddTag(i);
		}
		else {
			myField.value += edButtons[i].tagEnd;
			edRemoveTag(i);
		}
		myField.focus();
	}
}

function edInsertContent(myField, myValue) {
	//IE support
	if (document.selection) {
		myField.focus();
		sel = document.selection.createRange();
		sel.text = myValue;
		myField.focus();
	}
	//MOZILLA/NETSCAPE support
	else if (myField.selectionStart || myField.selectionStart == '0') {
		var startPos = myField.selectionStart;
		var endPos = myField.selectionEnd;
		var scrollTop = myField.scrollTop;
		myField.value = myField.value.substring(0, startPos)
									+ myValue 
											+ myField.value.substring(endPos, myField.value.length);
		myField.focus();
		myField.selectionStart = startPos + myValue.length;
		myField.selectionEnd = startPos + myValue.length;
		myField.scrollTop = scrollTop;
	} else {
		myField.value += myValue;
		myField.focus();
	}
}

function countInstances(string, substr) {
	var count = string.split(substr);
	return count.length - 1;
}

function edSetCookie(name, value, expires, path, domain) {
	document.cookie= name + "=" + escape(value) +
		((expires) ? "; expires=" + expires.toGMTString() : "") +
		((path) ? "; path=" + path : "") +
		((domain) ? "; domain=" + domain : "");
}

function edShowExtraCookie() {
	var cookies = document.cookie.split(';');
	for (var i=0;i < cookies.length; i++) {
		var cookieData = cookies[i];
		while (cookieData.charAt(0) ==' ') {
			cookieData = cookieData.substring(1, cookieData.length);
		}
		if (cookieData.indexOf('js_quicktags_extra') == 0) {
			if (cookieData.substring(19, cookieData.length) == 'show') {
				return true;
			}
			else {
				return false;
			}
		}
	}
	return false;
}

/*
 * File uploading for related_docs areas
 */

function smarttoggle_save_button(_element) {
	var element = $(_element);
	var button = $$('#' + element.id + ' input').detect(function(formEl) {
		return formEl.type == 'submit';
	});

	if(element.style.display == 'none' && has_form_upload_boxes(button.form.id)) {
		element.style.display = 'block';
	} else if(element.style.display == 'block' && !has_form_upload_boxes(button.form.id)) {
		element.style.display = 'none';
	}
}

function has_form_upload_boxes(form) {
	var inputs = Form.getInputs(form);
	for(var i = 0; i < inputs.length; i++) {
		if(inputs[i].type == 'file') return true;
	}

	return false;
}


/*
 * BackgrounDRb Progress bar
 */
function progressPercent(bar, percentage) {
  document.getElementById(bar).style.width =  parseInt(percentage*2)+"px";
  document.getElementById(bar).innerHTML= "<div align='center'>"+percentage+"%</div>"
}