function changeVer(lang) {

	content=window.location.pathname;
	content=content.substring(3 , content.length);

	//alert ("http://digitaltv.perfectlink.com.hk" + "/cgi-bin/digitaltv/changever.cgi?lang=" + lang + "&path=" + content);		
	
	window.location.href = "/cgi-bin/digitaltv/changever.cgi?lang=" + lang + "&path=" + content;

}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

NS4 = (document.layers) ? 1 : 0;
IE4 = (document.all) ? 1 : 0;
ver4 = (NS4 || IE4) ? 1 : 0;

var mainSubLayName = new Array('menu1','menu2', 'menu3', 'menu4', 'menu5', 'menu6', 'menu7');
var mainSubLayX = new Array(10, 10, 10, 5, 135, 250, 5);
var docWidth = 782;
var prevLayName = '';

function popUp(idx,on) {	
	frame = self;
	if (idx > 0) {
		curLayName = mainSubLayName[idx - 1];
		resetLayLeft(curLayName, mainSubLayX[idx-1]);
		popUpByName(curLayName,on);
	}
}

function resetLayLeft(curLayName, x) {
	if (NS4) {
		document.layers[curLayName].left = x + getMargin();
	} else {
		document.all[curLayName].style.left = x + getMargin();
	}
}

function popUpByName(curLayName,on) {
	if (on) {
		prevLayName = curLayName;
		if (NS4) {
			document.layers[curLayName].visibility = "show";
		} else {
			document.all[curLayName].style.visibility = "visible";
		}
	} else {
		if (NS4) {
			document.layers[curLayName].visibility = "hide";
		} else {
			document.all[curLayName].style.visibility = "hidden";
		}
	}
}

function getMargin() {
	var bodyX, x;
	
	if (NS4) {
		bodyX = window.innerWidth;
	} else {
		bodyX = document.body.offsetWidth-20;
	}
	
	x = (bodyX-docWidth)/2;
	
	if (x<0) { x = 0 }; 
	
	return x;
}

function closePrev() {
	if (prevLayName != '') {
		popUpByName(prevLayName,false);
	}
}

function top() {
document.write("<table cellpadding=0 cellspacing=0 border=0><tr><td><img src=\"../images/top_inside.gif\" border=0 USEMAP=\"\#top_inside_Map\"></td><form name=\"searchform\" action=\"http://search.gov.hk/search.html\" method=\"get\" target=\"_blank\"><td><input type=\"hidden\" name=\"tpl_id\" value=\"stdsearch\"><input type=\"hidden\" name=\"ui_lang\" value=\"zh-cn\"><input type=\"hidden\" name=\"ui_charset\" value=\"gb2312\"><input type=\"hidden\" name=\"web\" value=\"this\"><input type=\"hidden\" name=\"gp0\" value=\"digitaltv_home\"><input type=\"hidden\" name=\"gp1\" value=\"digitaltv_home\"><input type=\"text\" name=\"query\" size=\"10\" maxlength=\"100\" class=\"ins\"></td><td><input type=\"image\" src=\"/images/search_but.gif\" alt=\"Search\"></td></form></tr></table>");
document.write("<MAP NAME=\"top_inside_Map\">");
document.write("<AREA SHAPE=rect ALT=\"搜寻\" COORDS=\"610,0,645,25\" HREF=\"javascript:document.searchform.submit();\">");
document.write("<AREA SHAPE=rect ALT=\"纯文字版\" COORDS=\"550,0,595,25\" HREF=\"javascript:changeVer('sctxt')\">");
document.write("<AREA SHAPE=rect ALT=\"繁体\" COORDS=\"510,0,540,25\" HREF=\"javascript:changeVer('chi')\">");
document.write("<AREA SHAPE=rect ALT=\"English\" COORDS=\"460,0,500,25\" HREF=\"javascript:changeVer('eng')\">");
document.write("<AREA SHAPE=rect ALT=\"网页指南\" COORDS=\"390,0,440,25\" HREF=\"/sc/general/sitemap.htm\">");
document.write("<AREA SHAPE=rect ALT=\"联络我们\" COORDS=\"325,0,380,25\" HREF=\"/sc/general/contact.htm\">");
document.write("<AREA SHAPE=rect ALT=\"相关网址\" COORDS=\"270,0,320,25\" HREF=\"\/sc/general/links.htm\">");
document.write("<AREA SHAPE=rect ALT=\"数码电视术语\" COORDS=\"180,0,260,25\" HREF=\"/sc/general/glossary.htm\">");
document.write("<AREA SHAPE=rect ALT=\"常见问题\" COORDS=\"120,0,170,25\" HREF=\"/sc/general/faq.htm\">");
document.write("<AREA SHAPE=rect ALT=\"刊物\" COORDS=\"85,0,110,25\" HREF=\"/sc/general/publications.htm\">");
document.write("<AREA SHAPE=rect ALT=\"通讯室\" COORDS=\"35,0,75,25\" HREF=\"/sc/general/news.htm\">");
document.write("<AREA SHAPE=rect ALT=\"主页\" COORDS=\"0,0,34,25\" HREF=\"/sc/general/index.htm\"></MAP>");
}

function top1() {
document.write("<object classid=\"clsid:D27CDB6E-AE6D-11cf-96B8-444553540000\" codebase=\"http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,29,0\" width=800 height=215>");
document.write("<param name=movie value=../top.swf>");
document.write("<param name=quality value=high>");
document.write("<param name=wmode value=transparent>");
document.write("<embed src=../top.swf quality=high pluginspage=\"http://www.macromedia.com/go/getflashplayer\" type=\"application/x-shockwave-flash\" width=800 height=215></embed></object>");
}

document.write("<DIV ID=\"menu1\" STYLE=\"POSITION: absolute; Z-INDEX: 20; VISIBILITY: hidden; TOP: 245px; width: 125px; height: 94px\"><TABLE WIDTH=762 BORDER=0 CELLPADDING=0 CELLSPACING=0><TR>");
document.write("<TD><A HREF=\"/sc/consumer/chronology.htm\" ONMOUSEOUT=\"popUp(4,false);MM_swapImgRestore()\" ONMOUSEOVER=\"popUp(4,true);MM_swapImage('menu1a','','../images/menu/menu1_on_01.gif',1);\"><IMG SRC=\"../images/menu/menu1_01.gif\" ALT=\"有关数码电视\" NAME=menu1a BORDER=0></A></TD>");
document.write("<TD><A HREF=\"/sc/consumer/benefit.htm\" ONMOUSEOUT=\"popUp(5,false);MM_swapImgRestore()\" ONMOUSEOVER=\"popUp(5,true);MM_swapImage('menu1b','','../images/menu/menu1_on_02.gif',1);\"><IMG SRC=\"../images/menu/menu1_02.gif\" ALT=\"消费者得益\" NAME=menu1b BORDER=0></A></TD>");
document.write("<TD><A HREF=\"/sc/consumer/dtv.htm\" ONMOUSEOUT=\"popUp(6,false);MM_swapImgRestore()\" ONMOUSEOVER=\"popUp(6,true);MM_swapImage('menu1c','','../images/menu/menu1_on_03.gif',1);\"><IMG SRC=\"../images/menu/menu1_03.gif\" ALT=\"收看数码电视\" NAME=menu1c BORDER=0></A></TD>");
document.write("<TD><A HREF=\"/sc/consumer/labelling.htm\" ONMOUSEOUT=\"MM_swapImgRestore()\" ONMOUSEOVER=\"MM_swapImage('menu1d','','../images/menu/menu1_on_04.gif',1);\"><IMG SRC=\"../images/menu/menu1_04.gif\" ALT=\"标签计划\" NAME=menu1d BORDER=0></a></TD>");
document.write("<TD><IMG SRC=\"../images/menu/menu1_05.gif\" ALT=\"\" NAME=menu1e BORDER=0></TD>");
document.write("</TR></TABLE></DIV>");

document.write("<DIV ID=\"menu2\" STYLE=\"POSITION: absolute; Z-INDEX: 20; VISIBILITY: hidden; TOP: 245px; width: 125px; height: 94px\"><TABLE WIDTH=762 BORDER=0 CELLPADDING=0 CELLSPACING=0><TR>");
document.write("<TD><IMG SRC=\"../images/menu/menu2_01.gif\" ALT=\"\" BORDER=0></TD>");
document.write("<TD><A HREF=\"/sc/industry/plans.htm\" ONMOUSEOUT=\"MM_swapImgRestore()\" ONMOUSEOVER=\"MM_swapImage('menu2a','','../images/menu/menu2_on_02.gif',1);\"><IMG SRC=\"../images/menu/menu2_02.gif\" ALT=\"频率方案\" NAME=menu2a BORDER=0></A></TD>");
document.write("<TD><A HREF=\"/sc/industry/guideline.htm\" ONMOUSEOUT=\"MM_swapImgRestore()\" ONMOUSEOVER=\"MM_swapImage('menu2b','','../images/menu/menu2_on_03.gif',1);\"><IMG SRC=\"../images/menu/menu2_03.gif\" ALT=\"技术指引\" NAME=menu2b BORDER=0></A></TD>");
document.write("<TD><A HREF=\"/sc/industry/trials.htm\" ONMOUSEOUT=\"MM_swapImgRestore()\" ONMOUSEOVER=\"MM_swapImage('menu2c','','../images/menu/menu2_on_04.gif',1);\"><IMG SRC=\"../images/menu/menu2_04.gif\" ALT=\"技术测试\" NAME=menu2c BORDER=0></A></TD>");
document.write("<TD><IMG SRC=\"../images/menu/menu2_05.gif\" ALT=\"\" BORDER=0></TD>");
document.write("</TR></TABLE></DIV>");

document.write("<DIV ID=\"menu3\" STYLE=\"POSITION: absolute; Z-INDEX: 20; VISIBILITY: hidden; TOP: 245px; width: 125px; height: 94px\"><TABLE WIDTH=762 BORDER=0 CELLPADDING=0 CELLSPACING=0><TR>");
document.write("<TD><IMG SRC=\"../images/menu/menu3_01.gif\" ALT=\"\" NAME= BORDER=0></TD>");
document.write("<TD><A HREF=\"/sc/gov/role.htm\" ONMOUSEOUT=\"MM_swapImgRestore()\" ONMOUSEOVER=\"MM_swapImage('menu3a','','../images/menu/menu3_on_02.gif',1);\"><IMG SRC=\"../images/menu/menu3_02.gif\" ALT=\"政府角色\" NAME=menu3a BORDER=0></A></TD>");
document.write("<TD><A HREF=\"/sc/gov/policy.htm\" ONMOUSEOUT=\"MM_swapImgRestore()\" ONMOUSEOVER=\"MM_swapImage('menu3b','','../images/menu/menu3_on_03.gif',1);\"><IMG SRC=\"../images/menu/menu3_03.gif\" ALT=\"政策及规管\" NAME=menu3b BORDER=0></A></TD>");
document.write("<TD><A HREF=\"/sc/gov/workgroup.htm\" ONMOUSEOUT=\"MM_swapImgRestore()\" ONMOUSEOVER=\"MM_swapImage('menu3c','','../images/menu/menu3_on_04.gif',1);\"><IMG SRC=\"../images/menu/menu3_04.gif\" ALT=\"工作小组\" NAME=menu3c BORDER=0></A></TD>");
document.write("</TR></TABLE></DIV>");

document.write("<DIV ID=\"menu4\" STYLE=\"POSITION: absolute; Z-INDEX: 20; VISIBILITY: hidden; TOP: 290px; width: 186px; height: 94px\"><TABLE WIDTH=186 BORDER=0 CELLPADDING=0 CELLSPACING=0>");
document.write("<TR><TD><A HREF=\"/sc/consumer/chronology.htm\" ONMOUSEOUT=\"popUp(4,false);MM_swapImgRestore()\" ONMOUSEOVER=\"popUp(4,true);MM_swapImage('sub1a1','','../images/menu/sub1a_on_01.gif',1);\"><IMG SRC=\"../images/menu/sub1a_01.gif\" ALT=\"本港数码电视发展时序\" NAME=sub1a1 BORDER=0></A></TD></tr>");
document.write("<TR><TD><A HREF=\"/sc/consumer/basic.htm\" ONMOUSEOUT=\"popUp(4,false);MM_swapImgRestore()\" ONMOUSEOVER=\"popUp(4,true);MM_swapImage('sub1a2','','../images/menu/sub1a_on_02.gif',1);\"><IMG SRC=\"../images/menu/sub1a_02.gif\" ALT=\"数码电视简介\" NAME=sub1a2 BORDER=0></A></TD></tr>");
document.write("</TABLE></DIV>");

document.write("<DIV ID=\"menu5\" STYLE=\"POSITION: absolute; Z-INDEX: 20; VISIBILITY: hidden; TOP: 290px; width: 186px; height: 94px\"><TABLE WIDTH=186 BORDER=0 CELLPADDING=0 CELLSPACING=0>");
document.write("<TR><TD><A HREF=\"/sc/consumer/multi.htm\" ONMOUSEOUT=\"popUp(5,false);MM_swapImgRestore()\" ONMOUSEOVER=\"popUp(5,true);MM_swapImage('sub1b1','','../images/menu/sub1b_on_01.gif',1);\"><IMG SRC=\"../images/menu/sub1b_01.gif\" ALT=\"多频道广播\" NAME=sub1b1 BORDER=0></A></TD></tr>");
document.write("<TR><TD><A HREF=\"/sc/consumer/hdtv.htm\" ONMOUSEOUT=\"popUp(5,false);MM_swapImgRestore()\" ONMOUSEOVER=\"popUp(5,true);MM_swapImage('sub1b2','','../images/menu/sub1b_on_02.gif',1);\"><IMG SRC=\"../images/menu/sub1b_02.gif\" ALT=\"高清电视\" NAME=sub1b2 BORDER=0></A></TD></tr>");
document.write("<TR><TD><A HREF=\"/sc/consumer/inter.htm\" ONMOUSEOUT=\"popUp(5,false);MM_swapImgRestore()\" ONMOUSEOVER=\"popUp(5,true);MM_swapImage('sub1b3','','../images/menu/sub1b_on_03.gif',1);\"><IMG SRC=\"../images/menu/sub1b_03.gif\" ALT=\"互动及数据服务\" NAME=sub1b3 BORDER=0></A></TD></tr>");
document.write("</TABLE></DIV>");

document.write("<DIV ID=\"menu6\" STYLE=\"POSITION: absolute; Z-INDEX: 20; VISIBILITY: hidden; TOP: 290px; width: 186px; height: 94px\"><TABLE WIDTH=186 BORDER=0 CELLPADDING=0 CELLSPACING=0>");
document.write("<TR><TD><A HREF=\"/sc/consumer/dtv.htm\" ONMOUSEOUT=\"popUp(6,false);MM_swapImgRestore()\" ONMOUSEOVER=\"popUp(6,true);MM_swapImage('sub1c1','','../images/menu/sub1c_on_01.gif',1);\"><IMG SRC=\"../images/menu/sub1c_01.gif\" ALT=\"平台及营办商\" NAME=sub1c1 BORDER=0></A></TD></tr>");
document.write("<TR><TD><A HREF=\"/sc/consumer/recept.htm\" ONMOUSEOUT=\"popUp(6,false);MM_swapImgRestore()\" ONMOUSEOVER=\"popUp(6,true);MM_swapImage('sub1c2','','../images/menu/sub1c_on_02.gif',1);\"><IMG SRC=\"../images/menu/sub1c_02.gif\" ALT=\"接收\" NAME=sub1c2 BORDER=0></A></TD></tr>");
document.write("</TABLE></DIV>");

document.write("<DIV ID=\"menu7\" STYLE=\"POSITION: absolute; Z-INDEX: 20; VISIBILITY: hidden; TOP: 290px; width: 186px; height: 94px\"><TABLE WIDTH=186 BORDER=0 CELLPADDING=0 CELLSPACING=0>");
document.write("<TR><TD><A HREF=\"/sc/industry/plans.htm\" ONMOUSEOUT=\"popUp(7,false);MM_swapImgRestore()\" ONMOUSEOVER=\"popUp(7,true);MM_swapImage('sub2a1','','../images/menu/sub2a_on_01.gif',1);\"><IMG SRC=\"../images/menu/sub2a_01.gif\" ALT=\"Frequency plans\" NAME=sub2a1 BORDER=0></A></TD></tr>");
document.write("<tr><TD><A HREF=\"/sc/industry/guideline.htm\" ONMOUSEOUT=\"popUp(7,false);MM_swapImgRestore()\" ONMOUSEOVER=\"popUp(7,true);MM_swapImage('sub2a2','','../images/menu/sub2a_on_02.gif',1);\"><IMG SRC=\"../images/menu/sub2a_02.gif\" ALT=\"Technical Guidelines\" NAME=sub2a2 BORDER=0></A></TD></tr>");
document.write("<tr><TD><A HREF=\"/sc/industry/trials.htm\" ONMOUSEOUT=\"popUp(7,false);MM_swapImgRestore()\" ONMOUSEOVER=\"popUp(7,true);MM_swapImage('sub2a3','','../images/menu/sub2a_on_03.gif',1);\"><IMG SRC=\"../images/menu/sub2a_03.gif\" ALT=\"Technical Trials\" NAME=sub2a3 BORDER=0></A></TD></tr>");
document.write("</TABLE></DIV>");