function addEvent(obj, type, fn) {
	if (obj.addEventListener)
		obj.addEventListener( type, fn, false );
	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] );
	}
}

function removeEvent(obj, type, fn) {
	if (obj.removeEventListener)
		obj.removeEventListener( type, fn, false );
	else if (obj.detachEvent) {
		obj.detachEvent( 'on'+type, obj[type+fn] );
		obj[type+fn] = null;
		obj['e'+type+fn] = null;
	}
}

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;
}

function stripe() {
	var tables = getElementsByClass("stripe");
	for(var x=0;x!=tables.length;x++){
		var table = tables[x];
		if (! table) { return; }
		var tbodies = table.getElementsByTagName("tbody");
		for (var h = 0; h < tbodies.length; h++) {
			var even = true;
			var trs = tbodies[h].getElementsByTagName("tr");
			for (var i = 0; i < trs.length; i++) {
				trs[i].className += (even) ? "even" : "odd";
				even = !even;
			}
		}
	}
}

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 raw_popup(url, target, features) {
  var _POPUP_FEATURES = 'scrollbars=yes,location=no,statusbar=no,menubar=no,resizable=yes,width=630,height=600';
  if (!features) {
    features = _POPUP_FEATURES;
  }
  if (!target) {
    target = '_blank';
  }
  var theWindow = window.open(url, target, features);
  theWindow.focus();
  return theWindow;
}

function popup(src, features) {
  return raw_popup(src.getAttribute('href'),
    src.getAttribute('target') || '_blank',
    features);
}

//  Standards Compliant Rollover Script
//	Author : Daniel Nolan
//	http://www.bleedingego.co.uk/webdev.php
function initRollovers() {
	if (!document.getElementById) return

	var aPreLoad = new Array();
	var sTempSrc;
	var aImages = document.getElementsByTagName('img');

	for (var i = 0; i < aImages.length; i++) {
		if (aImages[i].className == 'rollover') {
			var src = aImages[i].getAttribute('src');
			var ftype = src.substring(src.lastIndexOf('.'), src.length);
			var hsrc = src.replace(ftype, '-over'+ftype);

			aImages[i].setAttribute('hsrc', hsrc);

			aPreLoad[i] = new Image();
			aPreLoad[i].src = hsrc;

			aImages[i].onmouseover = function() {
				sTempSrc = this.getAttribute('src');
				this.setAttribute('src', this.getAttribute('hsrc'));
			}

			aImages[i].onmouseout = function() {
				 if (!sTempSrc) sTempSrc = this.getAttribute('src').replace('-over'+ftype, ftype);
				this.setAttribute('src', sTempSrc);
			}
		}
	}
}




//
// getPageScroll()
// Returns array with x,y page scroll values.
// Core code from - quirksmode.org
//
function getPageScroll(){
	var yScroll;

	if (self.pageYOffset) {
		yScroll = self.pageYOffset;
	} else if (document.documentElement && document.documentElement.scrollTop){	 // Explorer 6 Strict
		yScroll = document.documentElement.scrollTop;
	} else if (document.body) {// all other Explorers
		yScroll = document.body.scrollTop;
	}

	arrayPageScroll = new Array('',yScroll)
	return arrayPageScroll;
}

//
// getPageSize()
// Returns array with page width, height and window width, height
// Core code from - quirksmode.org
// Edit for Firefox by pHaez
//
function getPageSize(){

	var xScroll, yScroll;

	if (window.innerHeight && window.scrollMaxY) {
		xScroll = document.body.scrollWidth;
		yScroll = window.innerHeight + window.scrollMaxY;
	} else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
		xScroll = document.body.scrollWidth;
		yScroll = document.body.scrollHeight;
	} else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
		xScroll = document.body.offsetWidth;
		yScroll = document.body.offsetHeight;
	}

	var windowWidth, windowHeight;
	if (self.innerHeight) {	// all except Explorer
		windowWidth = self.innerWidth;
		windowHeight = self.innerHeight;
	} else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
		windowWidth = document.documentElement.clientWidth;
		windowHeight = document.documentElement.clientHeight;
	} else if (document.body) { // other Explorers
		windowWidth = document.body.clientWidth;
		windowHeight = document.body.clientHeight;
	}

	// for small pages with total height less then height of the viewport
	if(yScroll < windowHeight){
		pageHeight = windowHeight;
	} else {
		pageHeight = yScroll;
	}

	// for small pages with total width less then width of the viewport
	if(xScroll < windowWidth){
		pageWidth = windowWidth;
	} else {
		pageWidth = xScroll;
	}


	arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight)
	return arrayPageSize;
}

// Array.concat() - Join two arrays
if( typeof Array.prototype.concat==='undefined' ) {
 Array.prototype.concat = function( a ) {
  for( var i = 0, b = this.copy(); i<a.length; i++ ) {
   b[b.length] = a[i];
  }
  return b;
  };
}

// Array.copy() - Copy an array
if( typeof Array.prototype.copy==='undefined' ) {
 Array.prototype.copy = function() {
  var a = [], i = this.length;
  while( i-- ) {
   a[i] = typeof this[i].copy!=='undefined' ? this[i].copy() : this[i];
  }
  return a;
 };
}

// Array.pop() - Remove and return the last element of an array
if( typeof Array.prototype.pop==='undefined' ) {
 Array.prototype.pop = function() {
  var b = this[this.length-1];
  this.length--;
  return b;
 };
}

// Array.push() - Add an element to the end of an array, return the new length
if( typeof Array.prototype.push==='undefined' ) {
 Array.prototype.push = function() {
  for( var i = 0, b = this.length, a = arguments, l = a.length; i<l; i++ ) {
   this[b+i] = a[i];
  }
  return this.length;
 };
}

// Array.shift() - Remove and return the first element
if( typeof Array.prototype.shift==='undefined' ) {
 Array.prototype.shift = function() {
  for( var i = 0, b = this[0], l = this.length-1; i<l; i++ ) {
   this[i] = this[i+1];
  }
  this.length--;
  return b;
 };
}

// Array.slice() - Copy and return several elements
if( typeof Array.prototype.slice==='undefined' ) {
 Array.prototype.slice = function( a, c ) {
  var i, l = this.length, r = [];
  if( !c ) { c = l; }
  if( c<0 ) { c = l + c; }
  if( a<0 ) { a = l - a; }
  if( c<a ) { i = a; a = c; c = i; }
  for( i = 0; i < c - a; i++ ) { r[i] = this[a+i]; }
  return r;
 };
}

// Array.splice() - Remove or replace several elements and return any deleted elements
if( typeof Array.prototype.splice==='undefined' ) {
 Array.prototype.splice = function( a, c ) {
  var i = 0, e = arguments, d = this.copy(), f = a, l = this.length;
  if( !c ) { c = l - a; }
  for( i; i < e.length - 2; i++ ) { this[a + i] = e[i + 2]; }
  for( a; a < l - c; a++ ) { this[a + e.length - 2] = d[a - c]; }
  this.length -= c - e.length + 2;
  return d.slice( f, f + c );
 };
}

// Array.unshift() - Add an element to the beginning of an array
if( typeof Array.prototype.unshift==='undefined' ) {
 Array.prototype.unshift = function() {
  this.reverse();
  var a = arguments, i = a.length;
  while(i--) { this.push(a[i]); }
  this.reverse();
  return this.length;
 };
}

// Array.forEach( function ) - Apply a function to each element
Array.prototype.forEach = function( f ) {
	var i = this.length, j, l = this.length;
	for( i=0; i<l; i++ ) { if( ( j = this[i] ) ) { f( j ); } }
};

// Array.indexOf( value, begin, strict ) - Return index of the first element that matches value
Array.prototype.indexOf = function( v, b, s ) {
	for( var i = +b || 0, l = this.length; i < l; i++ ) {
		if( this[i]===v || s && this[i]==v ) { return i; }
	}
	return -1;
};

// Array.insert( index, value ) - Insert value at index, without overwriting existing keys
Array.prototype.insert = function( i, v ) {
	if( i>=0 ) {
		var a = this.slice(), b = a.splice( i );
		a[i] = v;
		return a.concat( b );
	}
};

// Array.lastIndexOf( value, begin, strict ) - Return index of the last element that matches value
Array.prototype.lastIndexOf = function( v, b, s ) {
	b = +b || 0;
	var i = this.length;
	while(i-->b) {
		if( this[i]===v || s && this[i]==v ) { return i; }
	}
	return -1;
};

// Array.random( range ) - Return a random element, optionally up to or from range
Array.prototype.random = function( r ) {
	var i = 0, l = this.length;
	if( !r ) { r = this.length; }
	else if( r > 0 ) { r = r % l; }
	else { i = r; r = l + r % l; }
	return this[ Math.floor( r * Math.random() - i ) ];
};

// Array.shuffle( deep ) - Randomly interchange elements
Array.prototype.shuffle = function( b ) {
	var i = this.length, j, t;
	while( i ) {
		j = Math.floor( ( i-- ) * Math.random() );
		t = b && typeof this[i].shuffle!=='undefined' ? this[i].shuffle() : this[i];
		this[i] = this[j];
		this[j] = t;
	}
	return this;
};

// Array.unique( strict ) - Remove duplicate values
Array.prototype.unique = function( b ) {
	var a = [], i, l = this.length;
	for( i=0; i<l; i++ ) {
		if( a.indexOf( this[i], 0, b ) < 0 ) { a.push( this[i] ); }
	}
	return a;
};

// Array.walk() - Change each value according to a callback function
Array.prototype.walk = function( f ) {
	var a = [], i = this.length;
	while(i--) { a.push( f( this[i] ) ); }
	return a.reverse();
};

