if(typeof(A4page) == 'undefined') A4page = {}; A4page.Zone = [];
A4page.Zone["B1"]={"zonecode":"B1",content:[{ "aid":"10292", "zid":"150",	"title":"好听在沪江",	"link":"http://bulo.hjenglish.com/group/music8/",	"advtype":"P",	"source":"http://a4.yeshj.com/upload/200802/TS-X-B1P-10292_68.jpg",	"adFormCode":"B1",  "protected":false }]};A4page.Zone["H1"]={"zonecode":"H1",content:[{ "aid":"32305", "zid":"449",	"title":"<b>沪江网校，让学习变成一种爱好</b>",	"link":"http://class.yeshj.com/zt/en/?source=147",	"advtype":"T",	"source":"",	"adFormCode":"H1",  "protected":false }]};A4page.Zone["S1"]={"zonecode":"S1",content:[{ "aid":"27562", "zid":"611",	"title":"夏令营",	"link":"http://zt.yeshj.com/zt/2009/summer/",	"advtype":"P",	"source":"http://a4.yeshj.com/upload/200904/TS-X-S1P-27562_96.jpg",	"adFormCode":"S1",  "protected":false }]};A4page.Zone["Z1"]={"zonecode":"Z1",content:[{ "aid":"25763", "zid":"762",	"title":"60个单词拿下办公室英语",	"link":"http://cnap.englishtown.com/Sp/Landing/default.aspx?ctr=cn&lng=cs&v=2&kwid=95024&cfid=82589&v=2&etag=A67000061FE",	"advtype":"T",	"source":"",	"adFormCode":"Z1",  "protected":false }]};A4page.Zone["Z2"]={"zonecode":"Z2",content:[{ "aid":"25764", "zid":"763",	"title":"<b>英语小测：一见钟情怎么说？</b>",	"link":"http://cnap.englishtown.com/Sp/Landing/default.aspx?ctr=cn&lng=cs&kwid=85341&cfid=84219&tyid=84223&etag=A67000024FE",	"advtype":"T",	"source":"",	"adFormCode":"Z2",  "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;
}