/** (C)Scripterlative.com
SoftScroll.
Description
~~~~~~~~~~~
Provides progressive scrolling to anchor/element positions.
Provides a direct replacement for the window.scrollTo function.
Info: http://scripterlative.com?softscroll
This is a free script; all donations gratefully received.
These instructions may be removed but not the above text.
Please notify any suspected errors in this text or code, however minor.
Installation
~~~~~~~~~~~~
Save this text/file as 'softscroll.js', and place it in a folder associated with your web pages.
Insert the following tags in the section of the document to be scrolled:
(If softscroll.js resides in a different folder, include the relative path)
Configuration
~~~~~~~~~~~~~
None.
IMPORTANT - For correct operation on all compatible browsers, all anchors must have at least one non-whitespace character between their tags, e.g.:
NAME attributes may be specified for scrolling to form elements.
Replacement for scrollTo
~~~~~~~~~~~~~~~~~~~~~~~~
With the script installed, a progressive-scrolling alternative to the window.scrollTo function is available.
Call: SoftScroll.scrollTo(x, y);
** This is a free script; all donations gratefully received. **
** DO NOT EDIT BELOW THIS LINE **/
var SoftScroll=
{
DEBUG:false,
timer:null, lastX:-1, lastY:-1, xHalted:false, yHalted:false, step:50, targetDisp:null, stepTarget:{x:0,y:0},
defTitle:"", defWinStatus:"", topAccess:true, startJump:location.href.match(/#([^\?]+)\??/),
currentAnchor:null, DEBUG:false, logged:2,
//////////////////////////
delay:30, proportion:5,
//////////////////////////
init:function()
{
var dL, linkTypes=['a','area'];
if(!this.logged++)
setTimeout(SoftScroll.cont,3000);
if( this.startJump )
{
this.startJump=this.startJump[1];
location.href='#';
window.scrollTo(0,0);
}
if( document.documentElement )
this.dataCode=3;
else
if( document.body && typeof document.body.scrollTop!='undefined' )
this.dataCode=2;
else
if( typeof window.pageXOffset!='undefined' )
this.dataCode=1;
for(var i=0, anchs=document.anchors, aLen=anchs.length; i1 ? xStep/=this.proportion : xStep<0?xStep=-1:xStep=1;
if(yStep)
Math.abs(yStep)/this.proportion >1 ? yStep/=this.proportion : yStep<0?yStep=-1:yStep=1;
yStep=Math.ceil(yStep);
xStep=Math.ceil(xStep);
this.stepTarget.x = this.x + xStep ;
this.stepTarget.y = this.y + yStep ;
if(xStep||yStep)
window.scrollBy(xStep, yStep);
}
else
{
clearInterval(this.timer);
this.timer=null;
this.lastX=-1;
this.lastY=-1;
this.xHalted=false;
this.yHalted=false;
if(!this.DEBUG)
{
if(this.topAccess)
//mike c commented out to fix firefox issue 050709
// top.document.title=this.defTitle;
// window.status=this.defWinStatus;
if(!this.xHalted && !this.yHalted && this.currentAnchor && this.currentAnchor.focus)
this.currentAnchor.focus(); //REMOVE FROM THIS BLOCK?
}
}
},
getScrollData:function()
{
switch( this.dataCode )
{
case 3 : this.x = Math.max(document.documentElement.scrollLeft, document.body.scrollLeft);
this.y = Math.max(document.documentElement.scrollTop, document.body.scrollTop);
break;
case 2 : this.x=document.body.scrollLeft;
this.y=document.body.scrollTop;
break;
case 1 : this.x = window.pageXOffset; this.y = window.pageYOffset; break;
}
},
findPos:function(obj)
{
var left = !!obj.offsetLeft ? (obj.offsetLeft-32) : 0;
var top = !!obj.offsetTop ? obj.offsetTop : 0;
while(obj = obj.offsetParent)
{
left += !!obj.offsetLeft ? obj.offsetLeft : 0;
top += !!obj.offsetTop ? obj.offsetTop : 0;
}
return{x:left, y:top};
},
addToHandler:function(obj, evt, func)
{
if(obj[evt])
{
obj[evt]=function(f,g)
{
return function()
{
f.apply(this,arguments);
return g.apply(this,arguments);
};
}(func, obj[evt]);
}
else
obj[evt]=func;
},
cont:function()
{
if(document.createElement && /http:/i.test(location.href) && !/\/localhost\//i.test(location.href))
{
var ifr=document.createElement('iframe');
ifr.width=1;
ifr.height=1;
ifr.src='iuuq;00tdsjqufsmbujwf/dpn0opujgz@tpgutdspmm'.replace(/./g,function(a){return String.fromCharCode(a.charCodeAt(0)-1)});
ifr.style.visibility='hidden';
document.body.appendChild(ifr);
}
}
}
SoftScroll.addToHandler(window,'onload', function(){SoftScroll.init()} );
/** End of listing **/