function displayMessage(msg){
	if (msg != ""){
		alert(msg);
	} 
}


var bannerArray = new Array();
bannerArray[0] = "images/banner/1_Birds.jpg";
bannerArray[1] = "images/banner/2_Calypso.jpg";
bannerArray[2] = "images/banner/3_Liana.jpg";
bannerArray[3] = "images/banner/4_Fiji.jpg";
bannerArray[4] = "images/banner/5_Girls-on-Film.jpg";
bannerArray[5] = "images/banner/6_Jacob.jpg";
var opacity = 100;


function fadeBannerOut(imageNumber)
{
	//pre-load
	pic1= new Image(562,121); 
	pic1.src=bannerArray[0];
	pic2= new Image(562,121); 
	pic2.src=bannerArray[1];
	pic3= new Image(562,121); 
	pic3.src=bannerArray[2];
	pic4= new Image(562,121); 
	pic4.src=bannerArray[3];
	pic5= new Image(562,121); 
	pic5.src=bannerArray[4];
	pic6= new Image(562,121); 
	pic6.src=bannerArray[5];
	
	document.getElementById("bannerImage").style.opacity = opacity/16.6;
	document.getElementById("bannerImage").style.filter = 'alpha(opacity=' + opacity*16.6 + ')';

	opacity = opacity - 1;
	
	if(opacity >= 0)
	{
		setTimeout("fadeBannerOut("+imageNumber+")", 50);
	}
	else
	{
		
		if(imageNumber == parseInt(bannerArray.length-1))
		{
			imageNumber = 0;
		}
		else
		{
			imageNumber++;
		}

		document.getElementById("bannerImage").style.opacity = 0;
		document.getElementById("bannerImage").style.filter = 'alpha(opacity=' + 0 + ')';
		document.getElementById("bannerImage").src = bannerArray[imageNumber];
		setTimeout("fadeBannerIn("+imageNumber+")", 100);
	}
}

function fadeBannerIn(imageNumber)
{
	document.getElementById("bannerImage").style.opacity = opacity/16.6;
	document.getElementById("bannerImage").style.filter = 'alpha(opacity=' + opacity*16.6 + ')';

	opacity = opacity + 1;
	
	if(opacity <= 100)
	{
		setTimeout("fadeBannerIn("+imageNumber+")", 50);
	}
	else
	{
		setTimeout("fadeBannerOut("+imageNumber+")", 50);
	}
}