/******************************************************************************
 *                                                                            *
 *  utility javascript functions                                      *
 *                                                                            *
 ******************************************************************************/

/*
 * opens maximised window
 * arguments: url, window name, height, width
 */
function openWin(url, windowName, winHeight, winWidth)
{
    var strProperties = 'toolbar=no,width=' + Math.round(winWidth) +
                        ',height=' + Math.round(winHeight) + ',left=0,top=0,' +
                        'status=no,scrollbars=no,resize=no';

    window.open(url, windowName, strProperties);
}

function zoom(image)
{
	var url = "showzoomimage.php?image=" + image;
	
	openWin(url, "zoom", 400, 400);
}