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overlib_anchor_mini.js：源码内容
							///////
//  overLIB Anchor Plugin
//  This file requires overLIB 4.10 or later.
//
//  overLIB 4.10 - You may not remove or change this notice.
//  Copyright Erik Bosrup 1998-2004. All rights reserved.
//  Contributors are listed on the homepage.
//  See http://www.bosrup.com/web/overlib/ for details.
///////
//  THIS IS A VERY MODIFIED VERSION. DO NOT EDIT OR PUBLISH. GET THE ORIGINAL!
if(typeof olInfo=='undefined'||typeof olInfo.meets=='undefined'||!olInfo.meets(4.10))alert('overLIB 4.10 or later is required for the Anchor Plugin.');else{registerCommands('anchor,anchorx,anchory,noanchorwarn,anchoralign');
if(typeof ol_anchor=='undefined')var ol_anchor='';if(typeof ol_anchorx=='undefined')var ol_anchorx=0;if(typeof ol_anchory=='undefined')var ol_anchory=0;if(typeof ol_noanchorwarn=='undefined')var ol_noanchorwarn=1;if(typeof ol_anchoralign=='undefined')var ol_anchoralign='UL';
var o3_anchor="",o3_anchorx=0,o3_anchory=0,o3_noanchorwarn=1,o3_anchoralign='UL',mrkObj,rmrkPosition;
function setAnchorVariables(){o3_anchor=ol_anchor;o3_anchorx=ol_anchorx;o3_anchory=ol_anchory;o3_noanchorwarn=ol_noanchorwarn;o3_anchoralign=ol_anchoralign;mrkObj=null}
function parseAnchorExtras(pf,i,ar){var v,k=i;
if(k<ar.length){if(ar[k]==ANCHOR){eval(pf+"anchor='"+escSglQuote(ar[++k])+"'");return k;}
if(ar[k]==ANCHORX){eval(pf+'anchorx='+ar[++k]);return k;}
if(ar[k]==ANCHORY){eval(pf+'anchory='+ar[++k]);return k;}
if(ar[k]==NOANCHORWARN){eval(pf+'noanchorwarn=('+pf+'noanchorwarn==1)?0:1');return k;}
if(ar[k]==ANCHORALIGN){k=opt_MULTIPLEARGS(++k,ar,(pf+'anchoralign')); return k;}}
return-1}
function checkAnchorObject(){var w=o3_anchor;
if(w){if(!(mrkObj=getAnchorObjectRef(w))){if(o3_noanchorwarn){alert('WARNING!  Reference mark "'+w+'" not found.');return false;}else w=''}}
return true}
function anchorHorizontal(browserWidth,horizontalScrollAmount,widthFix){var hasAnchor=(typeof o3_anchor!='undefined'&&o3_anchor);if(!hasAnchor)return void(0);
if(typeof o3_followscroll!='undefined'&&o3_followscroll&&o3_sticky)o3_relx=rmrkPosition[0];
return rmrkPosition[0]}
function anchorVertical(browserHeight,verticalScrollAmount){var hasAnchor=(typeof o3_anchor!='undefined'&&o3_anchor);if(!hasAnchor)return void(0);
if(typeof o3_followscroll!='undefined'&&o3_followscroll&&o3_sticky)o3_rely=rmrkPosition[1];
return rmrkPosition[1]}
function anchorPreface(){if(!mrkObj)return;rmrkPosition=getAnchorLocation(mrkObj)}
function getAnchorObjectRef(aObj){return getRefById(aObj,o3_frame.document)||getRefByName(aObj,o3_frame.document)}
function getAnchorLocation(objRef){var mkObj,of,offsets,mlyr
mkObj=mlyr=objRef
offsets=[o3_anchorx,o3_anchory]
if(document.layers){if(typeof mlyr.length!='undefined'&& mlyr.length>1){mkObj=mlyr[0]
offsets[0]+=mlyr[0].x+mlyr[1].pageX
offsets[1]+=mlyr[0].y+mlyr[1].pageY
}else{if(mlyr.toString().indexOf('Image')!=-1||mlyr.toString().indexOf('Anchor')!=-1){offsets[0]+=mlyr.x
offsets[1]+=mlyr.y
}else{offsets[0]+=mlyr.pageX
offsets[1]+=mlyr.pageY}}
}else{offsets[0]+=pageLocation(mlyr,'Left')
offsets[1]+=pageLocation(mlyr,'Top')}
of=getAnchorOffsets(mkObj)
if(typeof o3_dragimg!='undefined'&& o3_dragimg){olImgLeft=offsets[0];olImgTop=offsets[1]}
offsets[0]+=of[0]
offsets[1]+=of[1]
if(typeof o3_dragimg!='undefined'&& o3_dragimg){olImgRight=offsets[0];olImgBottom=offsets[1];return}
return offsets}
function getAnchorOffsets(mkObj){var fx=fy=0, mp,puc,mkAry,sx=sy=0,w=o3_anchoralign
var mW=mH=pW=pH=0
var off=[0,0]
mkAry=w.split(',');
if(mkAry.length<3){mp=mkAry[0].toUpperCase();puc=(mkAry.length==1)?mp:mkAry[1].toUpperCase();}else if(mkAry.length==3){if(!isNaN(mkAry[0])){mp=mkAry.slice(0,2);puc=mkAry[2].toUpperCase();}else{mp=mkAry[0].toUpperCase();puc=mkAry.slice(1)}
}else{mp=mkAry.slice(0,2);puc=mkAry.slice(2)}
var shdwPresent=typeof o3_shadow!='undefined'&& o3_shadow
if(shdwPresent){sx=Math.abs(o3_shadowx);sy=Math.abs(o3_shadowy)}
pW=(shdwPresent?parseInt(o3_width):(olNs4?over.clip.width:over.offsetWidth))
pH=(shdwPresent?parseInt(o3_aboveheight):(olNs4?over.clip.height:over.offsetHeight))
if(olOp&& o3_wrap){pW=(shdwPresent?parseInt(o3_width):(olNs4?over.clip.width:over.offsetWidth))
pH=(shdwPresent?parseInt(o3_aboveheight):(olNs4?over.clip.height:over.offsetHeight))}
if(!olOp&& mkObj.toString().indexOf('Image')!=-1){mW=mkObj.width
mH=mkObj.height
}else if(!olOp&& mkObj.toString().indexOf('Anchor')!=-1){mp='UL'
}else{mW=(olNs4)?mkObj.clip.width:mkObj.offsetWidth
mH=(olNs4)?mkObj.clip.height:mkObj.offsetHeight}
if(!isNaN(mp)||typeof mp=='object'){if(typeof mp=='object'){fx=parseFloat(mp[0]);fy=parseFloat(mp[1]);}else
fx=fy=parseFloat(mp);off=[Math.round(fx*mW),Math.round(fy*mH)];}else{if(mp=='UR')off=[mW,0]
else if(mp=='LL')off=[0,mH]
else if(mp=='LR')off=[mW,mH]}
if(typeof o3_dragimg!='undefined'&& o3_dragimg)return off;else{if(!isNaN(puc)||typeof puc=='object' ){if(typeof puc=='object'){fx=parseFloat(puc[0]);fy=parseFloat(puc[1]);}else
fx=fy=parseFloat(puc);off[0]-=Math.round(fx*(pW-sx));off[1]-=Math.round(fy*(pH-sy));}else{if(puc=='UR'){off[0]-=(pW-sx);off[1]-=sy
}else if(puc=='LL'){off[0]-=sx;off[1]-=(pH-sy)
}else if(puc=='LR'){off[0]-=(pW-sx);off[1]-=(pH-sy)}}
return off}}
function pageLocation(o,t){var x=0
while(o.offsetParent){x+=o['offset'+t]
o=o.offsetParent}
x+=o['offset'+t]
return x}
function getRefById(l,d){var r="",j
d=(d||document)
if(d.all)return d.all[l]
else if(d.getElementById)return d.getElementById(l)
else if(d.layers&& d.layers.length>0){if(d.layers[l])return d.layers[l]
for(j=0;j<d.layers.length;j++){r=getRefById(l,d.layers[j].document)
if(r)return r}}
return false}
function getRefByName(l,d){var r=null,j
d=(d||document)
if(d.images[l])return d.images[l]
else if(d.anchors[l])return d.anchors[l];else if(d.layers&& d.layers.length>0){for(j=0;j<d.layers.length;j++){r=getRefByName(l,d.layers[j].document)
if(r&& r.length>0)return r
else if(r)return [r,d.layers[j]]}}
return null}
registerRunTimeFunction(setAnchorVariables);registerCmdLineFunction(parseAnchorExtras);registerPostParseFunction(checkAnchorObject);registerHook("createPopup",anchorPreface,FAFTER);registerHook("horizontalPlacement",anchorHorizontal,FCHAIN);registerHook("verticalPlacement",anchorVertical,FCHAIN);if(olInfo.meets(4.10))registerNoParameterCommands('noanchorwarn');
}

						