var newwindow;
function landscape(url)
{
	newwindow=window.open(url,'name','height=480,width=620');
	if (window.focus) {newwindow.focus()}
}
function portrait(url)
{
	newwindow=window.open(url,'name','height=650,width=420');
	if (window.focus) {newwindow.focus()}
}
function cart(url)
{
	newwindow=window.open(url,'name','height=650,width=650');
	if (window.focus) {newwindow.focus()}
}
function cover(url)
{
	newwindow=window.open(url,'name','height=770,width=510');
	if (window.focus) {newwindow.focus()}
}