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Initial Commit

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mathias 2014-11-14 21:53:10 +02:00
parent 19ac23fd53
commit 4136f33f8b
2 changed files with 55 additions and 1 deletions
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2
js/scroll.js
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@ -1,7 +1,7 @@
(function() // Code in a function to create an isolate scope
{
var speed = 500;
var moving_frequency = 15; // Affects performance !
var moving_frequency = 35; // Affects performance !
var links = document.getElementsByTagName('a');
var href;
for(var i=0; i<links.length; i++)

54
js/scroll.js~ Normal file
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@ -0,0 +1,54 @@
(function() // Code in a function to create an isolate scope
{
var speed = 500;
var moving_frequency = 15; // Affects performance !
var links = document.getElementsByTagName('a');
var href;
for(var i=0; i<links.length; i++)
{
href = (links[i].attributes.href === undefined) ? null : links[i].attributes.href.nodeValue.toString();
if(href !== null && href.length > 1 && href.substr(0, 1) == '#')
{
links[i].onclick = function()
{
var element;
var href = this.attributes.href.nodeValue.toString();
if(element = document.getElementById(href.substr(1)))
{
var hop_count = speed/moving_frequency
var getScrollTopDocumentAtBegin = getScrollTopDocument();
var gap = (getScrollTopElement(element) - getScrollTopDocumentAtBegin) / hop_count;
for(var i = 1; i <= hop_count; i++)
{
(function()
{
var hop_top_position = gap*i;
setTimeout(function(){ window.scrollTo(0, hop_top_position + getScrollTopDocumentAtBegin); }, moving_frequency*i);
})();
}
}
return false;
};
}
}
var getScrollTopElement = function (e)
{
var top = 0;
while (e.offsetParent != undefined && e.offsetParent != null)
{
top += e.offsetTop + (e.clientTop != null ? e.clientTop : 0);
e = e.offsetParent;
}
return top;
};
var getScrollTopDocument = function()
{
return document.documentElement.scrollTop + document.body.scrollTop;
};
})();