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Find absolute position of relative element http://stackoverflow.com/questions/3930391/getting-absolute-position-of-an-element-relative-to-browser
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____ | |
(. \ | |
\ | | |
\ |___(\--/) | |
__/ ( . . ) | |
"'._. '-.O.' | |
'-. \ "|\ | |
'.,,/'.,,mrf |
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function findPos(obj, foundScrollLeft, foundScrollTop) { | |
var curleft = 0; | |
var curtop = 0; | |
if(obj.offsetLeft) curleft += parseInt(obj.offsetLeft); | |
if(obj.offsetTop) curtop += parseInt(obj.offsetTop); | |
if(obj.scrollTop && obj.scrollTop > 0) { | |
curtop -= parseInt(obj.scrollTop); | |
foundScrollTop = true; | |
} | |
if(obj.scrollLeft && obj.scrollLeft > 0) { | |
curleft -= parseInt(obj.scrollLeft); | |
foundScrollLeft = true; | |
} | |
if(obj.offsetParent) { | |
var pos = findPos(obj.offsetParent, foundScrollLeft, foundScrollTop); | |
curleft += pos[0]; | |
curtop += pos[1]; | |
} else if(obj.ownerDocument) { | |
var thewindow = obj.ownerDocument.defaultView; | |
if(!thewindow && obj.ownerDocument.parentWindow) | |
thewindow = obj.ownerDocument.parentWindow; | |
if(thewindow) { | |
if (!foundScrollTop && thewindow.scrollY && thewindow.scrollY > 0) curtop -= parseInt(thewindow.scrollY); | |
if (!foundScrollLeft && thewindow.scrollX && thewindow.scrollX > 0) curleft -= parseInt(thewindow.scrollX); | |
if(thewindow.frameElement) { | |
var pos = findPos(thewindow.frameElement); | |
curleft += pos[0]; | |
curtop += pos[1]; | |
} | |
} | |
} | |
return [curleft,curtop]; | |
} |
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function findPos(obj) { | |
var curleft = 0; | |
var curtop = 0; | |
if(obj.offsetLeft) curleft += parseInt(obj.offsetLeft); | |
if(obj.offsetTop) curtop += parseInt(obj.offsetTop); | |
if(obj.scrollTop && obj.scrollTop > 0) curtop -= parseInt(obj.scrollTop); | |
if(obj.offsetParent) { | |
var pos = findPos(obj.offsetParent); | |
curleft += pos[0]; | |
curtop += pos[1]; | |
} else if(obj.ownerDocument) { | |
var thewindow = obj.ownerDocument.defaultView; | |
if(!thewindow && obj.ownerDocument.parentWindow) | |
thewindow = obj.ownerDocument.parentWindow; | |
if(thewindow) { | |
if(thewindow.frameElement) { | |
var pos = findPos(thewindow.frameElement); | |
curleft += pos[0]; | |
curtop += pos[1]; | |
} | |
} | |
} | |
return [curleft,curtop]; | |
} |
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