js无图片实现tip提示效果，感觉很实用，so收藏下，顺便学习下！
转自：http://www.sosuo8.com/article-2010/js-tip-tips-to-achieve-results-without-picture.htm
示例：http://www.sosuo8.com/article-2010/js-tip-tips-to-achieve-results-without-picture.htm
网页提示是可以直接用title提示的，但是如果要实现个性化的title提示效果，就必须借助javascritp。jelle同学写的这个提示效果，体积小，且不用图片，值得推荐！
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>idche , ljtips http://www.cnblogs.com/idche/</title>
</head>
<body>
<style type="text/css">
/*你可以亲切称呼他是 '垃圾提示(ljtips)' 呵呵 */
/* 颜色方案1 #ccc #F9F3D0 #eee 边框颜色 背景颜色 CSS3阴影颜色*/
/* 颜色方案2 #2192D3 #F4FBFF #eee 边框颜色 背景颜色 CSS3阴影颜色*/
/* 你可以使用更多配色方案 需要把西面对应的颜色全部替换就行了。*/
body{ font-size:12px;}
.lj-tipsWrap,.lj-in,.lj-close{display:inline-block;}
.lj-tipsWrap{background:#F4FBFF;line-height:1.5em;padding:5px 15px;border:1px solid #2192D3;position:absolute;text-align:left;}
.lj-in{position:absolute;zoom:1;border:10px dashed transparent;width:0px;height:0px;}
.lj-in span{zoom:1;width:0px;height:0px;overflow:hidden;}
.lj-close{position:absolute; text-decoration:none;color:#000;font-size:14px; height:9px; width:9px; overflow:hidden;line-height:0.5em; right:0; top:0;}
.lj-close:hover{color:#39F;}
.lj-top{border-top:10px solid #2192D3;bottom:-20px; left:3px;}
.lj-top span{border-top:10px solid #F4FBFF;margin:-11px 0 0 -10px;}
.lj-right{border-right:10px solid #2192D3;left:-20px; top:3px;}
.lj-right span{border-right:10px solid #F4FBFF;margin:-10px 0 0 -9px;}
.lj-bottom{border-bottom:10px solid #2192D3;top:-20px; left:3px;}
.lj-bottom span{border-bottom:10px solid #F4FBFF;margin:-9px 0 0 -10px;}
.lj-left{border-left:10px solid #2192D3;right:-20px; top:3px; }
.lj-left span{border-left:10px solid #F4FBFF;margin:-10px 0 0 -11px;}
.lj-left ~ .lj-close{left:0;}
/*css 3 渐进增强*/
.lj-tipsWrap{-webkit-border-radius:3px;-moz-border-radius:3px;-webkit-box-shadow:2px 2px 3px #eee;-moz-box-shadow:2px 2px 3px #eee;}
</style>
<script type="text/javascript">
window.ljtips=function(){var i=document.body,j=document.documentElement,n=/msie\s([\d\.]+)/.test(navigator.userAgent.toLowerCase()),k=window;return function(l){var c=l?typeof l=="string"?document.getElementById(l):l:this,d=null,s=c.offsetWidth,t=c.offsetHeight,m=0,g=null,e={},o={left:function(a){return{top:d.top,left:d.left-a-15}},top:function(a,h){return{top:d.top-h-15,left:d.left}},right:function(){return{top:d.top,left:d.left+s+15}},bottom:function(){return{top:d.top+t+15,left:d.left}}};e.show=
function(a){if(c.lock)c.lock=false;else{c.lock=true;d=c.getBoundingClientRect();var h=i.scrollTop+j.scrollTop,f=i.scrollLeft+j.scrollLeft;a.p=a.p||"right";var b=e.append(a.p,a.closeBtn||false);b.getElementsByTagName("DIV")[0].innerHTML=a.content;var p=o[a.p](b.offsetWidth,b.offsetHeight);b.style.top=p.top+h+"px";b.style.left=p.left+f+"px";a.time&&setTimeout(function(){e.clear(document.getElementById("lj"+m))},a.time);a.fn&&a.fn.call(c,document.getElementById("lj"+m));g=function(w,q){return function(){var u=
i.scrollTop+j.scrollTop,v=i.scrollLeft+j.scrollLeft;d=c.getBoundingClientRect();var r=o[a.p](b.offsetWidth,b.offsetHeight);q.style.top=r.top+u+"px";q.style.left=r.left+v+"px"}}(c,b);n?k.attachEvent("onresize",g):k.addEventListener("resize",g,false)}};e.append=function(a,h){var f=m=Math.floor(Math.random()*1E4),b=document.createElement("DIV");b.id="lj"+f;b.innerHTML='<div class="lj-tipsWrap" id="tipsWrap-<%=r%>"><div></div><span class="lj-in lj-<%=p%>"><span class="lj-in"></span></span><a href="javascript:void(0)" id="ljClose<%=r%>" class="lj-close">x</a></div>'.replace("<%=p%>",
a).replace(/<%=r%>/g,f);document.body.appendChild(b);if(h)document.getElementById("ljClose"+f).onclick=e.hide;else document.getElementById("ljClose"+f).style.display="none";return document.getElementById("tipsWrap-"+f)};e.clear=function(a){a&&a.parentNode&&a.parentNode.removeChild(a);n?k.detachEvent("onresize",g):k.removeEventListener("resize",g,false);c.lock=false};e.hide=function(){e.clear(document.getElementById("lj"+m))};return e}}();
</script>
<!--这里是没有压缩的代码 window.ljtips = function(){
var html = "<div class=\"lj-tipsWrap\" id=\"tipsWrap-<%=r%>\">\
<div></div>\
<span class=\"lj-in lj-<%=p%>\"><span class=\"lj-in\"></span></span>\
<a href=\"javascript:void(0)\" id=\"ljClose<%=r%>\" class=\"lj-close\">x</a>\
</div>";
var dg = function(id){return document.getElementById(id);};
var dt = function(parent, nodeName){return parent.getElementsByTagName(nodeName);};
var db = document.body;
var dd = document.documentElement;
var of = 15;// 偏移量
var prefix = 'lj';// 前缀
var isie = /msie\s([\d\.]+)/.test(navigator.userAgent.toLowerCase());
var w = window;
var lock = true;// 锁定同一对象 多次弹出提示
return function(id){
var elem = id ? typeof id == "string" ? dg(id) : id : this;
var offset = null;
var width = elem.offsetWidth;
var height = elem.offsetHeight;
var rand = 0;// 随即值
var func = null;// 窗口变化绑定的函数
var _this = {};
var pos = {
left : function(w, h){return {top:offset.top , left:offset.left - w - of}},
top : function(w, h){return {top:offset.top - h - of, left:offset.left}},
right : function(w, h){return {top:offset.top , left:offset.left + width + of}},
bottom : function(w, h){return {top:offset.top + height + of , left:offset.left}}
};
_this.show = function(obj){
if(elem.lock){
elem.lock=false;return;
}else elem.lock=true;
offset = elem.getBoundingClientRect();
var top = db.scrollTop + dd.scrollTop;
var left= db.scrollLeft + dd.scrollLeft;
obj.p = obj.p || 'right';
var wrap = _this.append(obj.p, obj.closeBtn || false);
dt(wrap, "DIV")[0].innerHTML = obj.content;
var p = pos[obj.p](wrap.offsetWidth,wrap.offsetHeight);
wrap.style.top = p.top + top + "px";
wrap.style.left = p.left + left + "px";
obj.time && setTimeout(function(){_this.clear(dg(prefix+rand));}, obj.time);
obj.fn && obj.fn.call(elem, dg(prefix+rand));
//--检测窗口发生变化
func = function(a, b){
return function(){
var top = db.scrollTop + dd.scrollTop;
var left= db.scrollLeft + dd.scrollLeft;
offset = elem.getBoundingClientRect();
var c = pos[obj.p](wrap.offsetWidth, wrap.offsetHeight);
b.style.top = c.top + top + 'px';
b.style.left = c.left + left + 'px';
}
}(elem, wrap);
isie ? w.attachEvent('onresize', func) : w.addEventListener('resize', func, false);
}
_this.append = function(p,closeBtn){
var r = rand = Math.floor(Math.random() * 10000);
var x = document.createElement("DIV");
x.id = prefix + r;
x.innerHTML = html.replace("<%=p%>",p).replace(/<%=r%>/g,r);
document.body.appendChild(x);
if(closeBtn){
dg("ljClose"+r).onclick = _this.hide;
}else{
dg("ljClose"+r).style.display = "none";
}
return dg("tipsWrap-" + r);
}
_this.clear = function(a){
a && a.parentNode && a.parentNode.removeChild(a);
isie ? w.detachEvent('onresize',func) : w.removeEventListener('resize', func, false);
elem.lock = false;// 解除锁定
}
_this.hide = function(){
_this.clear(dg(prefix + rand));
}
return _this;
}
}();
-->
<h2>请划过或点击下面带框的文本</h2>
<span style="display:inline-block; padding:5px; border:1px solid #CCC; margin:30px 30px 30px 100px;" id="test1">看我这里一个DIV</span><br/>
<input style="display:inline-block; padding:5px; border:1px solid #CCC; margin:30px 30px 30px 100px;" value="点击我" id="test2"><br/>
<span style="display:inline-block; padding:5px; border:1px solid #CCC; margin:30px 30px 30px 100px;" id="test3">提示在我的下面出现</span><br/>
<span style="display:inline-block; padding:5px; border:1px solid #CCC; margin:30px 30px 30px 100px;" id="test4">提示在左边出现</span><br/>
<span style="display:inline-block; padding:5px; border:1px solid #CCC;margin:30px 30px 30px 100px;" id="test5">提示出现2秒后会自动消失</span><br/>
<span style="display:inline-block; padding:5px; border:1px solid #CCC; margin:30px 30px 30px 100px;" id="test6">提示可以有关闭按钮</span><br/>
<div style="text-align:center;">
<span style="display:inline-block; padding:5px; border:1px solid #CCC; margin:30px 30px 30px 100px;" id="test7">不同担心页面放大缩小会位置会偏移哦</span><br/>
</div>
<h2>优点</h2>
<ul>
<li>1：兼容 各种浏览器</li>
<li>2：自己定义TIPS样式(颜色),CSS3渐进增强</li>
<li>3：多方向弹出提示</li>
<li>4：纯CSS+javascript(不包含任何图片)</li>
<li>5：体积超级小 CSS+js = 3k</li>
</ul>
<h2>参数配置</h2>
<ul>
<li>ljtips(object).show(JSON)</li>
<li>object: DOM对象ID(test1), DOM对象</li>
<li><pre>
json:{
content:提示的消息内容(必须),
p:提示框位置(可选值top left bottom right),默认为right(可选),
closeBtn:是否有关闭按钮(true false) 默认值(false)(可选),
time:多少毫秒提示框消失(可选)
}
</pre></li>
</ul>
<h3>使用说明</h3>
<ul>
<li>主要方法 .show(); .hide();.clear(); 一般你只需要使用show,hide;</li>
<li>使用1</li>
<li>首先实例化一个ljtips(var tips=ljtips('test1')); 然后使用tips.show(JSON)</li>
<li>使用2</li>
<li>在行内调用提示框“<div onclick=" ljtips(this).show(JSON); "></div>”</li>
<li>使用3</li>
<li>在JS里调用document.getElementById("test6").onmouseover = function(){ljtips(this).show({content:"这个框你关不掉了吧！没有关闭按钮！",p:'right'})};</li>
</ul>
<script type="text/javascript">
var test1 = ljtips('test1');
document.getElementById("test1").onmouseover = function(){test1.show({content:"鼠标划过时候的TIPS...<br/>兼容主流浏览器 IE 6 7 8 chorme Firefox Opera Safari"})};
document.getElementById("test1").onmouseout = function(){test1.hide();};
document.getElementById("test2").onfocus = function(){ljtips(this).show({content:"这个提示会在<br/>input的上方！有个关闭按钮哦",p:'top',closeBtn:true})};
document.getElementById("test3").onmouseover = function(){ljtips(this).show({content:"我在下面出现了！不要认为会用到图片哦！",p:'bottom',closeBtn:true})};
document.getElementById("test4").onmouseover = function(){ljtips(this).show({content:"我可以在4个方向上",p:'left',closeBtn:true})};
document.getElementById("test5").onmouseover = function(){ljtips(this).show({content:"提示出现2秒后会自动消失",p:'bottom',time:2000})};
document.getElementById("test6").onmouseover = function(){ljtips(this).show({content:"这个框你关不掉了吧！没有关闭按钮！",p:'right'})};
document.getElementById("test7").onmouseover = function(){ljtips(this).show({content:"您可以放大或者缩小浏览器窗口！<br/>他会跟随这个绝对位置,不会有丝毫偏差。",p:'right',closeBtn:true})};
</script>
</body>
</html>
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