// JavaScript Document
DHTML = (document.getElementById || document.all || document.layers);

ns4    = (document.layers);
ns6    = (!document.all && document.getElementById);
ie4    = (document.all && !document.getElementById && !window.opera);
ie5    = (document.all && !document.fireEvent && !window.opera);
op7    = (window.opera && document.createComment) ;
w3dom  = (document.getElementById || op7);

function getObj(name) {
	if (document.getElementById) {
		if(document.getElementById(name)) {
			this.obj = document.getElementById(name);
			this.style = document.getElementById(name).style;
		} else return null;
	}
	else if (document.all) {
		if (document.all[name]) {
			this.obj = document.all[name];
			this.style = document.all[name].style;
		} else return null;
	}
	else if (document.layers) {
		if (document.layers[name]) {
			this.obj = document.layers[name];
			this.style = document.layers[name];
		} else return null;
	}
}

function hide(id) {
	if(!DHTML) return;
	var thing = new getObj(id);
	thing.style.display = "none";
}

function show(id) {
	if(!DHTML) return;
	var thing = new getObj(id);
	thing.style.display = "block";
}

function toggle(id) {
	if(!DHTML) return;
	var thing = new getObj(id);
	thing.style.display = (thing.style.display!="block"?"block":"none");
}

function addEvent( obj, type, fn ) {
	if (obj.addEventListener) {
		obj.addEventListener( type, fn, false );
		EventCache.add(obj, type, fn);
	}
	else if (obj.attachEvent) {
		obj["e"+type+fn] = fn;
		obj[type+fn] = function() { obj["e"+type+fn]( window.event ); }
		obj.attachEvent( "on"+type, obj[type+fn] );
		EventCache.add(obj, type, fn);
	}
	else {
		obj["on"+type] = obj["e"+type+fn];
	}
}
	
var EventCache = function(){
	var listEvents = [];
	return {
		listEvents : listEvents,
		add : function(node, sEventName, fHandler){
			listEvents.push(arguments);
		},
		flush : function(){
			var i, item;
			for(i = listEvents.length - 1; i >= 0; i = i - 1){
				item = listEvents[i];
				if(item[0].removeEventListener){
					item[0].removeEventListener(item[1], item[2], item[3]);
				};
				if(item[1].substring(0, 2) != "on"){
					item[1] = "on" + item[1];
				};
				if(item[0].detachEvent){
					item[0].detachEvent(item[1], item[2]);
				};
				item[0][item[1]] = null;
			};
		}
	};
}();
addEvent(window,'unload',EventCache.flush);


function addLoadEvent(func) {
	var oldonload = window.onload;
	if (typeof window.onload != 'function') {
		window.onload = func;
	}
	else {
		window.onload = function() {
			oldonload();
			func();
		}
	}
}


function getElementsByClass(searchClass,node,tag) {
	var classElements = new Array();
	if ( node == null )
		node = document;
	if ( tag == null )
		tag = '*';
	var els = node.getElementsByTagName(tag);
	var elsLen = els.length;
	var pattern = new RegExp("(^|\\s)"+searchClass+"(\\s|$)");
	for (i = 0, j = 0; i < elsLen; i++) {
		if ( pattern.test(els[i].className) ) {
			classElements[j] = els[i];
			j++;
		}
	}
	return classElements;
}


Array.prototype.inArray = function (value) {
	var i;
	for (i=0; i < this.length; i++) {
		if (stripCharacter(this[i],' ') === stripCharacter(value,' ')) {
			return true;
		}
	}
	return false;
};


function getCookie( name ) {
	var start = document.cookie.indexOf( name + "=" );
	var len = start + name.length + 1;
	if ( ( !start ) && ( name != document.cookie.substring( 0, name.length ) ) ) {
		return null;
	}
	if ( start == -1 ) return null;
	var end = document.cookie.indexOf( ";", len );
	if ( end == -1 ) end = document.cookie.length;
	return unescape( document.cookie.substring( len, end ) );
}
	
function setCookie( name, value, expires, path, domain, secure ) {
	var today = new Date();
	today.setTime( today.getTime() );
	if ( expires ) {
		expires = expires * 1000 * 60 * 60 * 24;
	}
	var expires_date = new Date( today.getTime() + (expires) );
	document.cookie = name+"="+escape( value ) +
		( ( expires ) ? ";expires="+expires_date.toGMTString() : "" ) + //expires.toGMTString()
		( ( path ) ? ";path=" + path : "" ) +
		( ( domain ) ? ";domain=" + domain : "" ) +
		( ( secure ) ? ";secure" : "" );
}
	
function deleteCookie( name, path, domain ) {
	if ( getCookie( name ) ) document.cookie = name + "=" +
			( ( path ) ? ";path=" + path : "") +
			( ( domain ) ? ";domain=" + domain : "" ) +
			";expires=Thu, 01-Jan-1970 00:00:01 GMT";
}

function encodeLink(s) { return s.replace("'","\\'"); }

function emailCheck(str) {
	
	var at="@";
	var dot=".";
	var lat=str.indexOf(at);
	var lstr=str.length;
	var ldot=str.indexOf(dot);
	
	return (!(lat==-1 || lat==0 || lat==lstr || ldot==-1 || ldot==0 || ldot==lstr || (str.indexOf(at,(lat+1))!=-1) || (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot) || (str.indexOf(dot,(lat+2))==-1) || (str.indexOf(" ")!=-1)));				
}