function ROfunction(){
	
    var imgNum = document.getElementsByTagName("img");
    var inputNum = document.getElementsByTagName("input");
 
    overNum = new Array;

    for (i = 0; i < imgNum.length; i++) {
        overNum[i] = imgNum[i];
    }

    for (i = 0; i < inputNum.length; i++) {
        overNum[i + imgNum.length] = inputNum[i];
    }

    for (i = 0; i < overNum.length; i++) {
        if (overNum[i].className.indexOf("Rover") != -1) {
            overNum[i].overimg = new Image();
            if (overNum[i].className.indexOf(":") != -1) {
                Replace = overNum[i].className.split(":");
                Replace = Replace[1].split(" ");
                overNum[i].overimg.src = Replace[0];
            }
            else {
                Replace = overNum[i].src.length;
                overNum[i].overimg.src = overNum[i].src.substring(0, Replace - 4) + "_o" + overNum[i].src.substring(Replace - 4, Replace);
            }
            overNum[i].setAttribute("out", overNum[i].src);
            overNum[i].onmouseover = new Function('this.src=this.overimg.src;');
            overNum[i].onmouseout = new Function('this.src=this.getAttribute("out");');
        }
    }
}

window.onload = ROfunction;