function opacity(id, opacStart, opacEnd, millisec) {
	//speed for each frame
	var speed = Math.round(millisec / 100);
	var timer = 0;

	//determine the direction for the blending, if start and end are the same nothing happens
	if(opacStart > opacEnd) {
		for(i = opacStart; i >= opacEnd; i--) {
			setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
			timer++;
		}
	} else if(opacStart < opacEnd) {
		for(i = opacStart; i <= opacEnd; i++)
			{
			setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
			timer++;
		}
	}
}

//change the opacity for different browsers
function changeOpac(opacity, id) {
	var object = document.getElementById(id).style; 
	object.opacity = (opacity / 100);
	object.MozOpacity = (opacity / 100);
	object.KhtmlOpacity = (opacity / 100);
	object.filter = "alpha(opacity=" + opacity + ")";
}

function shiftOpacity(id, millisec) {
	//if an element is invisible, make it visible, else make it ivisible
	if(document.getElementById(id).style.opacity == 0) {
		opacity(id, 0, 100, millisec);
	} else {
		opacity(id, 100, 0, millisec);
	}
}

function blendimage(divid, imageid, imagefile, millisec) {
	var speed = Math.round(millisec / 100);
	var timer = 100;
	
	//set the current image as background
	//document.getElementById(divid).style.backgroundImage = "url(" + document.getElementById(imageid).src + ")";
	
	// trying a new way to implement the background image....
	//document.getElementById(divid).style.backgroundImage = "url(" + document.getElementById(imageid).src + ")";
	for(i = 100; i > 0; i--) {
		setTimeout("changeOpac(" + i + ",'" + imageid + "')",(timer * speed));
		timer--;
	}
	timer = 0;
	
	//make image transparent
	changeOpac(0, imageid);
	
	//make new image
	document.getElementById(imageid).src = imagefile;
	
	//fade in image
	for(i = 0; i <= 100; i++) {
		setTimeout("changeOpac(" + i + ",'" + imageid + "')",(timer * speed));
		timer++;
	}
}

function currentOpac(id, opacEnd, millisec) {
	//standard opacity is 100
	var currentOpac = 100;
	
	//if the element has an opacity set, get it
	if(document.getElementById(id).style.opacity < 100) {
		currentOpac = document.getElementById(id).style.opacity * 100;
	}

	//call for the function that changes the opacity
	opacity(id, currentOpac, opacEnd, millisec)
}

var slideCache = new Array();
var imageNum = 0;

function runSlideShow(divid, imageid, imageFiles, displaySecs)
{
	var imageSeparator = imageFiles.indexOf(";");
	var nextImage = imageFiles.substring(0,imageSeparator);

	imageNum = 1;
	blendimage(divid,imageid,nextImage,1000);
	changeOpac(0, imageid);
	//	alert("The background image is " + document.getElementById(imageid).src + "." );

	var futureImages= imageFiles.substring(imageSeparator+1,imageFiles.length)+ ';' + nextImage;
	setTimeout("runSlideShow('"+divid+"','"+imageid+"','"+futureImages+"',"+displaySecs+")",displaySecs*1000);

	// Cache the next image to improve performance.
	imageSeparator = futureImages.indexOf(";");
	nextImage = futureImages.substring(0,imageSeparator);
	if (slideCache[nextImage] == null)
	{
		slideCache[nextImage] = new Image;
		slideCache[nextImage].src = nextImage;
	} 
	
}


function openWindow(url,imagename)
		{
			var name = 'Detailed View';
			if ( url == 'viewlogo.php' )
				var WidthHeight = 'height=1100,width=700,resize=yes,scrollbars=yes';
			else
				var WidthHeight = 'height=400,width=400,resize=yes';
			var windowName = url + '?image=' + imagename;
			newWindow = window.open(windowName, name, WidthHeight);
			newWindow.focus();
		}


function showPortfolio()
{
	runSlideShow('bizcards','bizcardsid','bizcards/thumbs/Body-In-Focus_thb.jpg;bizcards/thumbs/E&S_thb.jpg;bizcards/thumbs/Epic_thb.jpg;bizcards/thumbs/GTTB_thb.jpg;bizcards/thumbs/KSB_thb.jpg;bizcards/thumbs/Merchant-Net_thb.jpg;bizcards/thumbs/Organize-This_thb.jpg;bizcards/thumbs/PSV_thb.jpg',2.0);
	
	runSlideShow('logos','logosid','graphics/Body-In-Focus-Logo.jpg;graphics/Epic-Appraisals-Logo.jpg;graphics/GTTB-Logo.jpg;graphics/Ink-blot-Logo.jpg;graphics/Organize-This Logo.jpg;graphics/PSV-Logo.jpg',2.0);
}

function makeCurrent( objectID ) 
{
					/* get all the id's and hide everyone */
					var logoObj = document.getElementById("logodiv");
					var bizcardObj = document.getElementById("bizcards");
					var stationaryObj = document.getElementById("stationary");
					var brochureObj = document.getElementById("brochures");
					var mailObj = document.getElementById("directmail");
					var objectToDisplay = document.getElementById( objectID );
					//alert("Will be displaying " + objectID);
					// make only the desired element visible...
					logoObj.style.display = 'none';
					bizcardObj.style.display = 'none';
					stationaryObj.style.display = 'none';
					brochureObj.style.display = 'none';
					mailObj.style.display = 'none';
					objectToDisplay.style.display = 'block';

}

function setImage( imageId, imagepath )
{
//	alert("In setImage fcn, setting " + imageId + " to " + imagepath);
	var imageObj = document.getElementById( imageId );
	imageObj.src = imagepath;
}

function loadDiv( divId )
{
	makeCurrent( divId );
	if ( divId == 'logodiv' )
		setImage('logoImage','graphics/Organize-This.jpg');
	else if ( divId == "directmail" )
		setImage('directImage','directmail/Belmont-Savings1.jpg' );
	else if ( divId == "brochures" )
		setImage('','');
	else if ( divId == "stationary" )
		setImage('','');
	else 
		setImage('bizcards','bizcards/Organize-This.jpg');
	// done with the function
}

logos = new Array('Body-In-Focus.jpg','Creative-Infusion.jpg');

function makeImage( imagename, imageDiv )
{
	if ( imageDiv == "logodiv" ) {
//		alert("In makeImage() ");
		setImage('logoImage','graphics/' + imagename);
	}
	else if ( imageDiv == "directmail" )
		setImage('directImage','directmail/' + imagename );
	else if ( imageDiv == "brochures" )
		setImage('brochuresImage','brochures/' + imagename);
	else if ( imageDiv == "stationary" )
		setImage('stationaryImage','stationary/' + imagename);
	else 
		setImage('bizcardsImage','bizcards/' + imagename);
}