function openwin(url,wintype,id,winheight,winwidth)
	{
	//Default sizes for window
	var handle;
	var windowprop;
	if (winheight==null) winheight='550';
	if (winwidth==null) winwidth='550';
	if (wintype=="infowin") windowprop='toolbar=0,location=0,directories=0,status=1,menubar=0,scrollbars=1,resizable=0,top=100,left=100,width=800,height=600';
	if (wintype=="terms") windowprop='toolbar=0,location=0,directories=0,status=1,menubar=0,scrollbars=1,resizable=0,top=100,left=100,width=600,height=475';
	if (wintype=="image") windowprop='toolbar=0,location=0,directories=0,status=1,menubar=0,scrollbars=1,resizable=1,top=100,left=100,width=520,height=410';
	if (wintype=="buy") windowprop='toolbar=0,location=0,directories=0,status=1,menubar=0,scrollbars=1,resizable=1,top=100,left=100,width=830,height=550';

	
	if (navigator.appName.indexOf('Netscape') != -1)
		{
		//netscape
		handle=window.open(url, wintype + id, windowprop);				
		netscape.security.PrivilegeManager.enablePrivilege("UniversalBrowserWrite"); 
		handle.setZOptions("alwaysRaised"); 
		}
	else
		{
		if (navigator.appName.indexOf('Opera') != -1)
			{
			//opera
			}
		else
			//must be IE
			handle=window.open(url, wintype + id, windowprop);
			if (handle.closed==false)
			{
				handle.focus();
			}
		}
	handle.name=wintype + id;
				
	}

	function doCancel() {
		window.close();
	}