function Utils() {
	
}

Utils.prototype.getQueryStringParameterByName =  function ( name ){

  name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
  var regexS = "[\\?&]"+name+"=([^&#]*)";
  var regex = new RegExp( regexS );
  var results = regex.exec( window.location.href );
  if( results == null )
    return "";
  else
    return unescape(results[1]);
}

Utils.prototype.createCookie = function(name,value,days){
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}
Utils.prototype.readCookie = function(name){
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}
Utils.prototype.eraseCookie = function(name){
	this.createCookie(name,"",-1);
}

Utils.prototype.calculateTop = function(object){
	
	if (object){
		var topPos = (object.offsetTop + this.calculateTop(object.offsetParent))
		return topPos;
	}
	else{
		 return 0;
	}
	
}
Utils.prototype.calculateLeft = function(object){
	
	if (object){
		var leftPos = (object.offsetLeft + this.calculateLeft(object.offsetParent))
		return leftPos;
	}
	else {
		return 0;
	}


}