有记忆功能的JS设为首页(Cookies技术)_浏览器特效

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JavaScript Cookies技术的一个应用举例，有记忆功能的“设为首页”，也就是说它只会在第一次打开网页的时候出现，不管用户是否点击了该功能，以后它都不会再出现，很好的提升了用户体验，不会使用户那么烦你的网页。

<html>
<head>
<title>Cookies“设为首页”</title>
<meta http-equiv="mrc-type" mrc="text/html;charset=gb2312">
<script language="javascript">
document.writeln("<style type=\"text/css\">");
document.writeln("#oHomePage {behavior:url(#default#homepage)}");
document.writeln("<\/style>");
document.writeln("<font ID=\"oHomePage\"><\/font>");
var h_imgheight
document.ns = navigator.appName == "Netscape"
window.screen.width>800 ? h_imgheight=200:h_imgheight=200
function h_myload()
{
if (navigator.appName == "Netscape")
{document.setdp.pageY=pageYOffset+window.innerHeight-h_imgheight;
document.setdp.pageX=+window.innerWidth-400;
h_mymove();
}
else
{
setdp.style.top=document.body.scrollTop+document.body.offsetHeight-h_imgheight;
setdp.style.left=document.body.offsetWidth-400;
h_mymove();
}
}
function h_mymove()
{
if(document.ns)
{
document.setdp.top=pageYOffset+window.innerHeight-h_imgheight;
document.setdp.left=pageXOffset+window.innerWidth-550;
setTimeout("h_mymove();",50)
}
else
{
setdp.style.top=document.body.scrollTop+document.body.offsetHeight-h_imgheight;
setdp.style.left=document.body.scrollLeft+document.body.offsetWidth-550;
setTimeout("h_mymove();",50)
}
}
function h_MM_reloadPage(init) {//reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=h_MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
h_MM_reloadPage(true)
if (navigator.appName == "Netscape")
{document.write("<layer id=\"setdp\" top=\"300\" width=\"80\" height=\"88\"><img src=\"/jscss/demoimg/200908/sethome.gif\" width=\"157\" height=\"50\" border=\"0\" usemap=\"#Map2\"></layer>");
h_myload()}
else
{
document.write("<div id=\"setdp\" style=\"position: absolute;width:80;top:0;left:578;visibility:visible;z-index:1\"><img src=\"http://www.mb5u.com/jscss/demoimg/200908/sethome.gif\" width=\"157\" height=\"50\" border=\"0\" usemap=\"#Map2\"></div>");
h_myload()
}
if (h_getcookie()){
	
	setdp.style.display="none";
	}
function setd(b){
var default_href="http://www.mb5u.com";
if (b=="yes"){
	oHomePage.setHomePage(default_href);
	h_WriteCookie("yes");
	setdp.style.display="none";
	return false;}
else{
h_WriteCookie("no");
setdp.style.display="none";
return false;
}
}
function h_WriteCookie(b){
	if (b=="yes"){
	var e = new Date ();
	e.setTime (e.getTime() + (365*24*60*60*1000));
	e = e.toGMTString()
	}
	else{
	var e = new Date ();
	e.setTime (e.getTime() + (24*60*60*1000));
	e = e.toGMTString();
	}
	document.cookie="setd=yes;path=/;expires="+e+"domain=mb5u.com"
}
function h_getcookie(){
ck=document.cookie;
	if (ck.indexOf("setd=yes")!=-1){
	return true;
	}
	else 
	{return false;}
}
document.writeln("<map name=\"Map2\">");
document.writeln("<area shape=\"rect\" coords=\"35, 25, 65, 46\" href=\"#\"  onclick=\"setd(\'no\');return false\">");
document.writeln("<area shape=\"rect\" coords=\"92, 24, 123, 47\" href=\"#\"  onclick=\"setd(\'yes\');return false\">");
document.writeln("<\/map>");
</script>
</head>
<body>
</body>
</html>

所属频道：浏览器特效/更新时间：2013-04-17

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