var layerPopupImage = new Object();

// create image references for any potential popup images

function getLayerLargeImage( id ) {

	var width = layerPopupImage[id].width + 50;
	var height = layerPopupImage[id].height + 50;
	
	launchCentered('/viewLargeImage.php?mode=layer&id=' + id, width, height, 'scrollbars,resizable');

}