46 lines
1.4 KiB
JavaScript
46 lines
1.4 KiB
JavaScript
|
// xWidth, Copyright 2001-2005 Michael Foster (Cross-Browser.com)
|
||
|
|
// Part of X, a Cross-Browser Javascript Library, Distributed under the terms of the GNU LGPL
|
||
|
|
|
||
|
|
function xWidth(e,w)
|
||
|
|
{
|
||
|
|
if(!(e=xGetElementById(e))) return 0;
|
||
|
|
if (xNum(w)) {
|
||
|
|
if (w<0) w = 0;
|
||
|
|
else w=Math.round(w);
|
||
|
|
}
|
||
|
|
else w=-1;
|
||
|
|
var css=xDef(e.style);
|
||
|
|
if (e == document || e.tagName.toLowerCase() == 'html' || e.tagName.toLowerCase() == 'body') {
|
||
|
|
w = xClientWidth();
|
||
|
|
}
|
||
|
|
else if(css && xDef(e.offsetWidth) && xStr(e.style.width)) {
|
||
|
|
if(w>=0) {
|
||
|
|
var pl=0,pr=0,bl=0,br=0;
|
||
|
|
if (document.compatMode=='CSS1Compat') {
|
||
|
|
var gcs = xGetComputedStyle;
|
||
|
|
pl=gcs(e,'padding-left',1);
|
||
|
|
if (pl !== null) {
|
||
|
|
pr=gcs(e,'padding-right',1);
|
||
|
|
bl=gcs(e,'border-left-width',1);
|
||
|
|
br=gcs(e,'border-right-width',1);
|
||
|
|
}
|
||
|
|
// Should we try this as a last resort?
|
||
|
|
// At this point getComputedStyle and currentStyle do not exist.
|
||
|
|
else if(xDef(e.offsetWidth,e.style.width)){
|
||
|
|
e.style.width=w+'px';
|
||
|
|
pl=e.offsetWidth-w;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
w-=(pl+pr+bl+br);
|
||
|
|
if(isNaN(w)||w<0) return;
|
||
|
|
else e.style.width=w+'px';
|
||
|
|
}
|
||
|
|
w=e.offsetWidth;
|
||
|
|
}
|
||
|
|
else if(css && xDef(e.style.pixelWidth)) {
|
||
|
|
if(w>=0) e.style.pixelWidth=w;
|
||
|
|
w=e.style.pixelWidth;
|
||
|
|
}
|
||
|
|
return w;
|
||
|
|
}
|