function getCookie(checkedCookieName) {	
	var allCookies = document.cookie.split( ';' );	
	var cookieName = '';
	var cookieValue = '';	
	var wasCookieFound = false;
		
	for ( i = 0; i < allCookies.length; i++ ){
			
		var equalIndex = allCookies[i].indexOf('=');		
		if(equalIndex == -1){
		cookieName = allCookies[i];
		cookieValue = null;
		}else{
		cookieName = allCookies[i].substr(0, equalIndex);		
		cookieValue = allCookies[i].substr(equalIndex+1);		
		}		
		cookieName = cookieName.replace(/^\s+|\s+$/g, '');		
		
		if (cookieName == checkedCookieName){
			wasCookieFound = true;			
			return cookieValue.replace(/^\s+|\s+$/g, '');
			break;
		}		
	}
	
	if ( !wasCookieFound )
	{
		return null;
	}
}