function findPos(obj) {
	var curleft = curtop = 0;
	if (obj.offsetParent) {
		curleft = obj.offsetLeft
		curtop = obj.offsetTop
		while (obj = obj.offsetParent) {
			curleft += obj.offsetLeft
			curtop += obj.offsetTop
		}
	}
	return [curleft,curtop];
}

function addEvent(elm, evType, fn, useCapture) {
	if (elm.addEventListener) {
		elm.addEventListener(evType, fn, useCapture);
		return true;
	}
	else if (elm.attachEvent) {
		var r = elm.attachEvent('on' + evType, fn);
		return r;
	}
	else {
		elm['on' + evType] = fn;
	}
}

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


function setCookie(cookieName, cookieValue, nDays) {
	var today = new Date();
	var expire = new Date();
	if (nDays==null || nDays==0) nDays=1;
	expire.setTime(today.getTime() + 3600000*24*nDays);
	document.cookie = cookieName+"="+escape(cookieValue) + ";expires="+expire.toGMTString();
}

function getCookie(cookieName) {
	var theCookie=""+document.cookie;
	var ind=theCookie.indexOf(cookieName);
	if (ind==-1 || cookieName=="") return null; 
	var ind1=theCookie.indexOf(';',ind);
	if (ind1==-1) ind1=theCookie.length; 
	return unescape(theCookie.substring(ind+cookieName.length+1,ind1));
}


function cookie2array(cookieName) {
	var ckCrpt = getCookie(cookieName);
	if(ckCrpt != null) {
		if(ckCrpt.substr(0, 1) == ',') {
			ckCrpt = ckCrpt.substring(1, ckCrpt.Length - 1);
		}
		arrArray = ckCrpt.split(',');
	} else {
		arrArray = new Array();
	}
	return arrArray;
}


/**
 *   Array convenience method to clear membership.
 *
 *   @param object element
 *   @returns void
 */
Array.prototype.clear = function () {
    this.length = 0;
};

/**
 *   Array convenience method to remove element.
 *
 *   @param object element
 *   @returns boolean
 */
Array.prototype.remove = function (element) {
	var result = false;
	var array = [];
	for (var i = 0; i < this.length; i++) {
		if (this[i] == element) {
			result = true;
		} else {
			array.push(this[i]);
		}
	}
	this.clear();
	for (var i = 0; i < array.length; i++) {
		this.push(array[i]);
	}
	array = null;
	return result;
};

/**
 *   Array convenience method to check for membership.
 *
 *   @param object element
 *   @returns boolean
 */
Array.prototype.contains = function (element) {
    for (var i = 0; i < this.length; i++) {
        if (this[i] == element) {
            return i;
        } 
    }
    return -1;
};



function findTarget(e)
{
 var target;

 if (window.event && window.event.srcElement)
   target = window.event.srcElement;
 else if (e && e.target)
   target = e.target;
 if (!target)
   return null;

 while (target != document.body &&
     target.nodeName.toLowerCase() != 'a')
   target = target.parentNode;

 if (target.nodeName.toLowerCase() != 'a')
   return null;

 return target;
}

function checkEmail(strEmail) {
  emailRegExp = /^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.([a-z]){2,4})$/;
  if(emailRegExp.test(strEmail)) return true;
  else return false;
}