function imgover(imgName) {

	document.images[imgName].src = img_pre_h[imgName].src;

}

function imgout(imgName) {

	document.images[imgName].src = img_pre[imgName].src;

}



function init() {

	img_names = new Array();

	img_pre = new Array();

	img_pre_h = new Array();

	

	var j = 0;

	for (i=0; i<document.images.length; i++) {

		if (document.images[i].name != "") {

			img_names[j] = document.images[i].name;

			j++;

		}

	}

	for (i=0; i<img_names.length; i++) {

		img_pre[img_names[i]] = new Image();

		img_pre_h[img_names[i]] = new Image();

		img_src = document.images[img_names[i]].src;

		img_src_h = img_src.replace(/property=picture/,"property=onOver");

		img_src_h = img_src_h.replace(/property=big/,"property=bigOnOver");

		img_src_h = img_src_h.replace(/property=small/,"property=smallOnOver");

		img_pre[img_names[i]].src = img_src;				

		img_pre_h[img_names[i]].src = img_src_h;

	}

}