function MyDialog() {
	var _this = this;

	_this.open = function(width, height, title, url) {
		var diag = new Dialog();
		diag.Width = width;
		diag.Height = height;
		diag.Title = title;
		diag.URL = url;
		diag.show();
	}
	
	_this.showtip=function(width, height, title, url){
		var diag = new Dialog();
		diag.Width = width;
		diag.Height = height;
		diag.Title = title;
		diag.ShowCloseButton=false;
		diag.URL = url;
		diag.show();
	}
}