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Smooth degradation, JS and HTML tag separation, extreme performance of JavaScript picture library

Source: Internet
Author: User
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1 <!DOCTYPE HTML>2 <HTMLLang= "en">3 <Head>4 <MetaCharSet= "UTF-8">5 <title>JavaScript Picture Library</title>6 <Scripttype= "Text/javascript">7     <!--JS Image Library with smooth degradation, JS and HTML tag separation, extreme performance -8     functionShowpic (whichpic) {9         varplaceholder=document.getElementById ("placeholder");Ten         if(!placeholder) { One             return false; A         } -         varSource=Whichpic.getattribute ("href"); - Placeholder.setattribute ("src", source); the         vardesc=document.getElementById ("Description"); -         if(DESC) { -             vartext=Whichpic.getattribute ("title"); - desc.childnodes[0].nodevalue=text; +         } -         return true; +     } A     functionbind () { at         if(!document.getElementById) { -            return false; -         } -         if(!document.getelementsbytagname) { -             return false; -         } in         varMygallery=document.getElementById ('Gallery'); -         vara=Mygallery.getelementsbytagname ("a"); to          for(varI=0; I<A.length;i++){ + A[i].onclick=function(){ -                 return !Showpic ( This); the             } *         } $     }Panax Notoginseng window.onload=bind; - </Script> the </Head> + <Body> A <ulID= "Gallery"> the     <Li><ahref= "IMAGE/1 (1). jpg"title= "nice frosted glass 1">Frosted Glass 1</a> </Li> +     <Li><ahref= "IMAGE/1 (2). jpg"title= "Nice frosted glass 2">Frosted Glass 2</a> </Li> -     <Li><ahref= "IMAGE/1 (3). jpg"title= "Nice frosted glass 3">Frosted Glass 3</a> </Li> $     <Li><ahref= "IMAGE/1 (4). jpg"title= "Nice frosted glass 4">Frosted Glass 4</a> </Li> $ </ul> - <imgID= "Placeholder"src= "Image/placeholder.jpg"alt= "My Image Gallery" /> - <PID= "description">Choose an image</P> the </Body> - </HTML>

Smooth degradation, JS and HTML tag separation, extreme performance of JavaScript picture library

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