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51 lines
No EOL
2.6 KiB
JavaScript
51 lines
No EOL
2.6 KiB
JavaScript
//** Scrolling HTML Bookmarks script- (c) Dynamic Drive DHTML code library: http://www.dynamicdrive.com.
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//** Available/ usage terms at http://www.dynamicdrive.com/ (April 11th, 09')
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//** Updated Nov 10th, 09'- Fixed anchor jumping issue in IE7
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var bookmarkscroll={
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setting: {duration:1000, yoffset:-50}, //{duration_of_scroll_milliseconds, offset_from_target_element_to_rest}
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topkeyword: '#top', //keyword used in your anchors and scrollTo() to cause script to scroll page to very top
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scrollTo:function(dest, options, hash){
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var $=jQuery, options=options || {}
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var $dest=(typeof dest=="string" && dest.length>0)? (dest==this.topkeyword? 0 : $('#'+dest)) : (dest)? $(dest) : [] //get element based on id, topkeyword, or dom ref
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if ($dest===0 || $dest.length==1 && (!options.autorun || options.autorun && Math.abs($dest.offset().top+(options.yoffset||this.setting.yoffset)-$(window).scrollTop())>5)){
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this.$body.animate({scrollTop: ($dest===0)? 0 : $dest.offset().top+(options.yoffset||this.setting.yoffset)}, (options.duration||this.setting.duration), function(){
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//** if ($dest!==0 && hash)
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//** location.hash=hash
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})
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}
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},
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urlparamselect:function(){
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var param=window.location.search.match(/scrollto=[\w\-_,]+/i) //search for scrollto=divid
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return (param)? param[0].split('=')[1] : null
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},
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init:function(){
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jQuery(document).ready(function($){
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var mainobj=bookmarkscroll
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mainobj.$body=(window.opera)? (document.compatMode=="CSS1Compat"? $('html') : $('body')) : $('html,body')
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var urlselectid=mainobj.urlparamselect() //get div of page.htm?scrollto=divid
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if (urlselectid) //if id defined
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setTimeout(function(){mainobj.scrollTo(document.getElementById(urlselectid) || $('a[name='+urlselectid+']:eq(0)').get(0), {autorun:true})}, 100)
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$('a[href^="#"]').each(function(){ //loop through links with "#" prefix
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var hashvalue=this.getAttribute('href').match(/#\w+$/i) //filter links at least 1 character following "#" prefix
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hashvalue=(hashvalue)? hashvalue[0].substring(1) : null //strip "#" from hashvalue
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if (this.hash.length>1){ //if hash value is more than just "#"
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var $bookmark=$('a[name='+this.hash.substr(1)+']:eq(0)')
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if ($bookmark.length==1 || this.hash==mainobj.topkeyword){ //if HTML anchor with given ID exists or href==topkeyword
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if ($bookmark.length==1 && !document.all) //non IE, or IE7+
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$bookmark.html('.').css({position:'absolute', fontSize:1, visibility:'hidden'})
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$(this).click(function(e){
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mainobj.scrollTo((this.hash==mainobj.topkeyword)? mainobj.topkeyword : $bookmark.get(0), {}, this.hash)
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e.preventDefault()
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})
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}
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}
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})
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})
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}
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}
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bookmarkscroll.init() |