function Watermark()
{
	this.watermark = document.createElement("div");
	this.watermark.style.position = "absolute";
	this.watermark.style.top = "0";
	this.watermark.style.fontSize = "40pt";
	this.watermark.style.fontWeight = "bold";
	this.watermark.style.backgroundColor = "black";
	this.watermark.style.color = "white";
	this.watermark.innerHTML = "TEST SITE - FOR EVALUATION ONLY";

	this.body = document.getElementsByTagName("body").item(0);
}

Watermark.prototype.show = function()
{
	this.body.appendChild(this.watermark);
}

Watermark.prototype.hide = function()
{
	this.body.removeChild(this.watermark);
}

var watermark = new Watermark();
setTimeout("watermark.show()", 100);
setTimeout("watermark.hide()", 2100);