Element.implement({
	sep_nfa_show: function() {
		this.setStyle('display','');
	},
	sep_nfa_hide: function() {
		this.setStyle('display','none');
	},
	sep_nfa_visible: function() {
		if(this.getStyle('display') == 'none') {
			return false;	
		}
		else {
			return true;
		}	
	},
	sep_nfa_toggle: function() {
		if(this.getStyle('display') == 'none') {
			this.sep_nfa_show();
		}
		else {
			this.sep_nfa_hide();
		}				
	},
	sep_nfa_update: function(html) {
		this.innerHTML = html;
	}
});	    
   
function SEP_NewsfeedAdvanced_post(action_id, type) {
	data_string = '';
	if(type == 3) {
		data_string = $('comment_post_form_'+action_id).toQueryString();
	}
 		
	myreq2 = new Request({
		method: 'post',
		url: './user_newsfeed_advanced_ajax.php',
		data: '_ajaxReq=1&task=post&type='+type+'&action_id='+action_id+'&' + data_string,
		onSuccess: function(html){ $('ajax_inject_new_post_'+action_id).clone().injectBefore('ajax_inject_new_post_'+action_id).sep_nfa_update(html.replace(/\\n/g, '<br>')); $('comment_post_form_'+action_id).reset(); if(type == 1 || type == 2) {$('likes_buttons_'+action_id).sep_nfa_hide();} },
		onFailure: function() {alert('No ha sido posible enviar tu comentario. Prueba de nuevo');}
	}).send();	    			

}

function SEP_NewsfeedAdvanced_show_edit_form(id) {
	if($('SEP_NewsfeedAdvanced_Edit_'+id).sep_nfa_visible()) {
		SEP_NewsfeedAdvanced_hide_edit_form(id);
	}
	else {
		$('SEP_NewsfeedAdvanced_Text_'+id).sep_nfa_hide();
		$('SEP_NewsfeedAdvanced_Edit_'+id).sep_nfa_show();
		$('SEP_NewsfeedAdvanced_Textarea_Edit_'+id).focus();
	}
}	

function SEP_NewsfeedAdvanced_hide_edit_form(id) {
	$('SEP_NewsfeedAdvanced_Edit_'+id).sep_nfa_hide();
	$('SEP_NewsfeedAdvanced_Text_'+id).sep_nfa_show();	
}

function SEP_NewsfeedAdvanced_edit(id, type) {
	data_string = '';
	if(type == 3) {
		data_string = $('comment_edit_form_'+id).toQueryString();
	}
 		
	myreq2 = new Request({
		method: 'post',
		url: './user_newsfeed_advanced_ajax.php',
		data: '_ajaxReq=1&task=edit&type='+type+'&id='+id+'&' + data_string,
		onSuccess: function(html){ $('SEP_NewsfeedAdvanced_Text_'+id).sep_nfa_update(html.replace(/\\n/g, '<br>')); $('SEP_NewsfeedAdvanced_Edit_'+id).sep_nfa_hide(); $('SEP_NewsfeedAdvanced_Text_'+id).sep_nfa_show(); },
		onFailure: function() {alert('No ha sido posible guardar tus cambios. Prueba de nuevo');}
	}).send();	 			
}


function SEP_NewsfeedAdvanced_delete(id) {
	myreq2 = new Request({
		method: 'post',
		url: './user_newsfeed_advanced_ajax.php',
		data: '_ajaxReq=1&task=delete&id='+id,
		onSuccess: function(html){ $('SEP_NewsfeedAdvanced_BoxItem_'+id).destroy(); },
		onFailure: function() {alert('No ha sido posible eliminar este comentario. Prueba de nuevo');}
	}).send();		
}

function SEP_NewsfeedAdvanced_report(id) {
	myreq2 = new Request({
		method: 'post',
		url: './user_newsfeed_advanced_ajax.php',
		data: '_ajaxReq=1&task=report&id='+id,
		onSuccess: function(){ $('SEP_NewsfeedAdvanced_ReportButton_'+id).destroy(); alert('Gracias por informar sobre este comentario'); },
		onFailure: function() {alert('No ha sido posible enviar tu informe. Prueba de nuevo');}
	}).send();			
}

function SEP_NewsfeedAdvanced_toggle_box(action_id, display) {
		if(display == 'preview') {
			$('SEP_NewsfeedAdvanced_Box_Final_'+action_id).sep_nfa_hide();	
			if(SEP_NewsfeedAdvanced_AutoGrow_Instance) {
				$('SEP_NewsfeedAdvanced_Textarea_'+action_id).setStyle('height', SEP_NewsfeedAdvanced_AutoGrow_Instance.textarea_old_height);		
			}
			$('SEP_NewsfeedAdvanced_Box_Preview_'+action_id).sep_nfa_show();			
		}
		else {
			$('SEP_NewsfeedAdvanced_Box_Preview_'+action_id).sep_nfa_hide();
			$('SEP_NewsfeedAdvanced_Box_Final_'+action_id).sep_nfa_show();	
			$('SEP_NewsfeedAdvanced_Textarea_'+action_id).focus();
		}
}

function SEP_NewsfeedAdvanced_ScrollTo(action_id) {
	offset = 300;
	div_position_y = $('SEP_NewsfeedAdvanced_Box_Final_'+action_id).getPosition().y;
	window.scrollTo(0, div_position_y-offset);
}

function SEP_NewsfeedAdvanced_Show_Hidden_Boxes(action_id) {
	$('SEP_NewsfeedAdvanced_ShowMoreButton_'+action_id).sep_nfa_hide();
	$$('div.SEP_NewsfeedAdvanced_Box_Hidden_'+action_id).each(function(elm){ elm.sep_nfa_show();});	
}

function SEP_NewsfeedAdvanced_Check_MaxLength(field_id, max_length) {
	if($(field_id).value.length	> max_length) {
		alert('El comentario que has escrito es demasiado largo');	
		return false;
	}
	
	return true;
}


function SEP_NewsfeedAdvanced_ItemOptions(mode, id) {
	if(mode == 'show') {
		$('SEP_NewsfeedAdvanced_Box_Header_Right_Inactive_'+id).sep_nfa_hide();
		$('SEP_NewsfeedAdvanced_Box_Header_Right_Active_'+id).sep_nfa_show();		
	}
	else {
		// $('SEP_NewsfeedAdvanced_Box_Header_Right_Active_'+id).sep_nfa_hide();			
		// $('SEP_NewsfeedAdvanced_Box_Header_Right_Inactive_'+id).sep_nfa_show();	
	} 	
}


   
/* 
 * Copyright (c) 2009 Gary Glass (www.bookballoon.com)
 * Modified by SEplugins 
 */   
var SEP_NewsfeedAdvanced_AutoGrow_Instance = null;
var AutoGrow = new Class({

	Implements: [Options, Events],

	options: {
		interval: 333, // update interval in milliseconds
		margin: 30, // gap (in px) to maintain between last line of text and bottom of textarea
		minHeight: 20 // minimum height of textarea
	},
	
	periodical_timer: null,
	textarea_old_height: 0,

	initialize: function(textarea, options) {
		this.textarea = $(textarea);
		this.options.minHeight = textarea.clientHeight;
		this.setOptions(options);
		this.dummy =  new Element("div", {
			styles:	{
				"overflow-x" : "hidden",
				"position"   : "absolute",
				"top"        : 0,
				"left"       : "-9999px"
			}
		}).setStyles(this.textarea.getStyles("font-size", "font-family", "width", "line-height", "padding")).inject(document.body);
		this.textarea_old_height = this.textarea.getStyle("height");
		this.resize();
		this.start();
	},

	resize: function() {
		var html = this.textarea.get('value').replace(/\n|\r\n/g, '<br>X');
		if (this.dummy.get("html").toLowerCase() != html.toLowerCase()){
			this.dummy.set("html", html);
			var triggerHeight = this.dummy.getSize().y + this.options.margin;
			if (this.textarea.clientHeight != triggerHeight)
			{
				var newHeight = Math.max(this.options.minHeight, triggerHeight);
				this.textarea.tween("height", newHeight);
			}
		}
	},
	
	start: function() {
		this.periodical_timer = this.resize.periodical(this.options.interval, this);
	},
	
	stop: function() {
		$clear(this.periodical_timer);	
	}
	
	

});