如何在固定div中显示图像以制作可滚动图像面板？

i am making a photo gallery script that involves displaying an image in fixed width/height box. now i want that image to display in its complete size. i mean, if the box is 700x300 px, the image should not resize to 700x300 but should display at its own full resolution. also if possible, can i somehow make it drag around in the box so that it can be viewd completely?i am making a photo gallery script that involve