function wopen(){
  var W1;
  W1 = window.open("","cart","toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,width=640,height=300");
  W1.focus();
}

function open_purchase_page(url) {

	window.open(url,'amazon_cart');
	/*window.focus();*/
	window.close();
}


if(navigator.appVersion.indexOf("Mac")> 1){
	document.write("<STYLE TYPE='text/css'>");
	document.write(".ssmall     {font-size:10px;line-height:10px;}");
	document.write(".small     {font-size:10px;}");
	document.write(".big     {font-size:18px;}");
	document.write(".sbig     {font-size:14px;}");
	document.write(".normal     {font-size:12px;}");
	document.write("</STYLE>");
}
else{
	if  (navigator.appName.charAt(0)=="M"){
		document.write("<STYLE TYPE='text/css'>");
		document.write(".ssmall     {font-size:11px;line-height:12px;}");
		document.write(".small     {font-size:12px;}");
		document.write(".big     {font-size:18px;}");
		document.write(".sbig     {font-size:16px;}");
		document.write(".normal     {font-size:14px;}");
		document.write("</STYLE>");
	}
	else{
		document.write("<STYLE TYPE='text/css'>");
		document.write(".ssmall     {font-size:11px;line-height:12px;}");
		document.write(".small     {font-size:12px;}");
		document.write(".big     {font-size:18px;}");
		document.write(".sbig     {font-size:16px;}");
		document.write(".normal     {font-size:15px;}");
		document.write("</STYLE>");
	}
}