var szCommon = 
{
	addEvent : function(obj, eventType, f)
	{
	  if (obj.addEventListener) {
	    obj.addEventListener(eventType, f, false);
	    return true;
	  } else if (obj.attachEvent) {
	    var retVal = obj.attachEvent("on"+eventType, f);
	    return retVal;
	  } else {
	    return false;
	  }
	}
}

if(!String.prototype.wordwrap)
{
	String.prototype.wordwrap = function(m, b, c)
	{
		var i, j, s, r = this.split("\n");
		if(m > 0) for(i in r)
		{
		for(s = r[i], r[i] = ""; s.length > m;
		j = c ? m : (j = s.substr(0, m).match(/\S*$/)).input.length - j[0].length
		|| m,
		r[i] += s.substr(0, j) + ((s = s.substr(j)).length ? b : "")
		);
		r[i] += s;
		}
		return r.join("\n");
	};
}