if (document.images) {
	viewcart_on = new Image();          viewcart_on.src = "images/sub_viewcart_over.gif"; 
    viewcart_off = new Image();         viewcart_off.src = "images/sub_viewcart.gif";  
	addtocart_on = new Image();         addtocart_on.src = "images/addtocart_over.gif"; 
    addtocart_off = new Image();        addtocart_off.src = "images/addtocart.gif";
}
function on(imgName) {
	if (document.images) {
		document[imgName].src = eval(imgName + "_on.src");
	}
}
function off(imgName) {
	if (document.images) {
		document[imgName].src = eval(imgName + "_off.src");        
	}
}
function on2(imgName, suf) {
	if (document.images) {
		imgN = imgName + suf;
		document[imgN].src = eval(imgName + "_on.src");
	}
}
function off2(imgName, suf) {
	if (document.images) {
		imgN = imgName + suf;
		document[imgN].src = eval(imgName + "_off.src");
	}
}
function form_submit(form_name){
	eval("document." + form_name + ".submit()");
}