if(typeof(A4page) == 'undefined') A4page = {}; A4page.Zone = [];
A4page.Zone["A1"]={"zonecode":"A1",content:[{ "aid":"33301", "zid":"857",	"title":"沪江网校",	"link":"http://class.yeshj.com/zt/en/?source=147",	"advtype":"P",	"source":"http://a4.yeshj.com/upload/200911/PP-A-A1P-33301_67.jpg",	"adFormCode":"A1",  "protected":false }]};A4page.Zone["B1"]={"zonecode":"B1",content:[{ "aid":"33694", "zid":"858",	"title":"四六级",	"link":"http://cet.hjenglish.com/page/90600/",	"advtype":"P",	"source":"http://a4.yeshj.com/upload/200912/PP-A-B1P-33694_50.jpg",	"adFormCode":"B1",  "protected":false }]};

function show_a4_zone(zonecode)
{
		if( typeof(A4page.Zone[zonecode]) == "undefined" ) return;
		if(A4page.Zone[zonecode].content[0].advtype == "T"){

			for (var i=0, post; post = A4page.Zone[zonecode].content[i]; i++) {

				if(zonecode.substring(0,1) == "H")
					document.write("<a href=\"http://a4.yeshj.com/rd/"+ post.aid +"/\" target=\"_blank\">" + post.title +"</a>&nbsp;&nbsp;");
				else
					document.write("<a href=\"http://a4.yeshj.com/rd/"+ post.aid +"/\" target=\"_blank\">" + post.title +"</a><br/>");
			}			

		}	else if (A4page.Zone[zonecode].content[0].advtype == "P"){

			if( A4page.Zone[zonecode].content.length == 1 ){

				document.write("<a href=\"http://a4.yeshj.com/rd/"+ A4page.Zone[zonecode].content[0].aid +"/\" title=\""+ A4page.Zone[zonecode].content[0].title +"\" target=\"_blank\"><img src=\""+ A4page.Zone[zonecode].content[0].source +"\" border=\"0\"></a>");

			}else{

				for (var i=0, post; post = A4page.Zone[zonecode].content[i]; i++) {
						document.write("<a href=\"http://a4.yeshj.com/rd/"+ post.aid +"/\" target=\"_blank\"><img src=\""+ post.source +"\" border=\"0\"></a><br/><br/>");
				}						
			}

		}else if (A4page.Zone[zonecode].content[0].advtype == "F"){

			document.write(ConvertUbb(A4page.Zone[zonecode].content[0].source));

		}
}

function ConvertUbb(Source){
	//定义ubb转换参数
	var flash_ubb = /\[flash=(\d*),(\d*)\](\S*)\[\/flash\]/igm;
	var flash_html= "<OBJECT codeBase=\"http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=8,0,22,0\" "
	+ " classid=\"clsid:d27CDB6E-AE6D-11cf-96B8-444553540000\" "
	+ "width=$1 height=$2>"
	+ "<PARAM NAME=movie VALUE=\"$3\">"
	+ "<PARAM NAME=quality VALUE=high>"
	+ "<embed src=\"$3\" width=$1 height=$2 quality=high name=index type=\"application/x-shockwave-flash\" pluginspage=\"http://www.macromedia.com/go/getflashplayer\"/>"
	+ "</OBJECT>";
	//执行转换
	Source=Source.replace(flash_ubb, flash_html );
	return Source;
}