window.onload = OnLoad;

function OnLoad()
{

	try
	{
		var iRandom = Math.floor(Math.random()*10);
		var sAdSquareSrc1 = "/images/html_images/ad_square/changesq.jpg";
		var sAdSquareSrc2 = "/images/html_images/ad_square/denholmsq.jpg";
		var sAdSquareSrc3 = "/images/html_images/ad_square/searchsq.jpg";
		var sAdSquareSrc4 = "/images/html_images/ad_square/resolvesq.gif";
		var sAdSquareSrc5 = "/images/html_images/ad_square/northgate_arinso_sq.gif";
		
		if(document.getElementById("adSquare") != null)
		{
			var oAdSquareImg = document.getElementById("adSquare");
			var oAdSquareLink = document.getElementById("adSquareLink");
			
			oAdSquareLink.href = "#";
			oAdSquareLink.target = "";
		
			if((iRandom >= 0) && (iRandom <= 2))
			{
				oAdSquareImg.src = sAdSquareSrc4;
			}
			else
			{
				if((iRandom >= 3) && (iRandom <= 4))
				{
					oAdSquareImg.src = sAdSquareSrc1;
				}
				else
				{
					if((iRandom >= 5) && (iRandom <= 6))
					{
						oAdSquareImg.src = sAdSquareSrc2;
					}
					else
					{
						if((iRandom >= 7) && (iRandom <= 8))
						{
							oAdSquareImg.src = sAdSquareSrc5;
							oAdSquareLink.href = "http://www.northgatearinso.com/uk";
							oAdSquareLink.target = "new";
						}
						else
						{
							oAdSquareImg.src = sAdSquareSrc3;
						}
					}
				}
			}
		}
	
	}
	catch(ex)
	{
//		alert(ex.message);
	}
}