// JavaScript Document
function popUpWindow(windowMode,imageURL) {
	
	if(windowMode == "open") {
		var newImg = new Image();	
		newImg.src = imageURL;
		newImg.onload = function() {
			var height = newImg.height;
			var width = newImg.width;		
			
			// Show popup
			document.getElementById('popUpImage').style.height = height + "px";
			document.getElementById('popUpImage').style.width = width + "px";
			document.getElementById('popUpImage').style.backgroundImage = "url('" + imageURL + "')";
			document.getElementById('blackout').style.visibility = 'visible';
			document.getElementById('blackout').style.display = 'block';
				
			document.getElementById('popUpScreen').style.top = ((document.body.clientHeight - height) / 2) + "px";
			document.getElementById('popUpScreen').style.left = ((document.body.clientWidth - width) / 2) + "px";
				/*document.getElementById('popUpScreen').style.top = "50%";*/
			document.getElementById('popUpScreen').style.visibility = 'visible';
			document.getElementById('popUpScreen').style.display = 'block';
		}
	}else if(windowMode=="close") {
			// Hide popup
			document.getElementById('blackout').style.visibility = 'hidden';
			document.getElementById('popUpScreen').style.visibility = 'hidden';
			document.getElementById('blackout').style.display = 'none';
			document.getElementById('popUpScreen').style.display = 'none';
	}
}