Código PHP:
imageArray = new Array();
imageArray[ImageNum++] = new imageItem(image_dir + "<?php echo $rowEmp['img1'];?>");
imageArray[ImageNum++] = new imageItem(image_dir + "<?php echo $rowEmp['img2'];?>");
imageArray[ImageNum++] = new imageItem(image_dir + "<?php echo $rowEmp['img3'];?>");
Saludos,