var currentCase 		= 'Elvi';													// ... Current visible case study
var currentPos 			= 0;															// ... Current x position of thumbnails within container
var thumbsLocked 		= 'No';														// Locks functionality until transitiion is complete

function showCase(c) {
	document.getElementById(currentCase + 'Case').style.display = 'none';
	document.getElementById(c + 'Case').style.display = 'block';
	currentCase = c;
}

function showThumbs(newPos) {
	if (thumbsLocked == 'No') {
		thumbsLocked = 'Yes';
	}
	if (newPos > currentPos) {
		currentPos = currentPos + 20;
		document.getElementById('Thumbnails').style.left = '-' + currentPos + 'px';
		setTimeout("showThumbs('" + newPos + "')", 5);
	} else if (newPos < currentPos) {
		currentPos = currentPos - 20;
		document.getElementById('Thumbnails').style.left = '-' + currentPos + 'px';
		setTimeout("showThumbs('" + newPos + "')", 5);
	} else if (newPos == currentPos) {
		thumbsLocked = 'No';
		if (currentPos == 0) {
			document.getElementById('PreviousThumbs').onmousedown = function() {};
			document.getElementById('PreviousThumbs').className = 'Disabled';
			document.getElementById('PreviousThumbs').title = '';
		} else {
			document.getElementById('PreviousThumbs').onmousedown = function() {if(thumbsLocked=='No'){showThumbs(currentPos - 480)}};
			document.getElementById('PreviousThumbs').className = '';
			document.getElementById('PreviousThumbs').title = 'Previous';
		}
		if (currentPos == 480) {
			document.getElementById('NextThumbs').onmousedown = function() {};
			document.getElementById('NextThumbs').className = 'Disabled';
			document.getElementById('NextThumbs').title = '';
		} else {
			document.getElementById('NextThumbs').onmousedown = function() {if(thumbsLocked=='No'){showThumbs(currentPos + 480)}};
			document.getElementById('NextThumbs').className = '';
			document.getElementById('NextThumbs').title = 'Next';
		}
	}
}