function audio(url)
{
window.open(url,'windowname','width=400,height=155,resizable=no,scrollbars=no,top='+((window.screen.availHeight/2)-(135/2))+',left='+((window.screen.availWidth/2)-(400/2))+'');
}

function order(url)
{
window.open(url,'windowname','width=335,height=370,resizable=no,scrollbars=no,top='+((window.screen.availHeight/2)-(135/2))+',left='+((window.screen.availWidth/2)-(400/2))+'');
}
//select box script
function catalog()
{
	url=document.catalog_form.url.options[document.catalog_form.url.selectedIndex].value;
	if(url != "default")
	{
		window.location=url;
	}
}