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Form is null or not an object error with draglayer javascript  XML
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xchander

Joined: 07/Aug/2007 00:00:00
Messages: 9
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My ice face application is running fine , filtering results based on drop down value .

But when I add the Javacript for drag layer in the body onload event, it gives the error "form is null or not an object" and form fails to submit.

onclick="iceSubmit(form,this,event)
Somehow it is not able to find the form with this script



Below is the javascript I am using :

<body onLoad="MM_dragLayer('boxDrag','',0,0,0,0,true,false,-1,-1,-1,-1,51,17,50,'dropme()',true,'dragme()')">

===

function MM_dragLayer(objName,x,hL,hT,hW,hH,toFront,dropBack,cU,cD,cL,cR,targL,targT,tol,dropJS,et,dragJS) { //v4.01
//Copyright 1998 Macromedia, Inc. All rights reserved.
var i,j,aLayer,retVal,curDrag=null,curLeft,curTop,IE=document.all,NS4=document.layers;
var NS6=(!IE&&document.getElementById), NS=(NS4||NS6); if (!IE && !NS) return false;
retVal = true; if(IE && event) event.returnValue = true;



if (MM_dragLayer.arguments.length > 1) {
curDrag = MM_findObj(objName); if (!curDrag) return false;
if (!document.allLayers) { document.allLayers = new Array();
with (document) if (NS4) { for (i=0; i<layers.length; i++) allLayers[i]=layers[i];
for (i=0; i<allLayers.length; i++) if (allLayers[i].document && allLayers[i].document.layers)
with (allLayers[i].document) for (j=0; j<layers.length; j++) allLayers[allLayers.length]=layers[j];
} else {
if (NS6) { var spns = getElementsByTagName("span"); var all = getElementsByTagName("div");
for (i=0;i<spns.length;i++) if (spns[i].style&&spns[i].style.position) allLayers[allLayers.length]=spns[i];}
for (i=0;i<all.length;i++) if (all[i].style&&all[i].style.position) allLayers[allLayers.length]=all[i];
} }
curDrag.MM_dragOk=true; curDrag.MM_targL=targL; curDrag.MM_targT=targT;
curDrag.MM_tol=Math.pow(tol,2); curDrag.MM_hLeft=hL; curDrag.MM_hTop=hT;
curDrag.MM_hWidth=hW; curDrag.MM_hHeight=hH; curDrag.MM_toFront=toFront;
curDrag.MM_dropBack=dropBack; curDrag.MM_dropJS=dropJS;
curDrag.MM_everyTime=et; curDrag.MM_dragJS=dragJS;
curDrag.MM_oldZ = (NS4)?curDrag.zIndex:curDrag.style.zIndex;
curLeft= (NS4)?curDrag.left:(NS6)?parseInt(curDrag.style.left):curDrag.style.pixelLeft;
if (String(curLeft)=="NaN") curLeft=0; curDrag.MM_startL = curLeft;
curTop = (NS4)?curDrag.top:(NS6)?parseInt(curDrag.style.top):curDrag.style.pixelTop;
if (String(curTop)=="NaN") curTop=0; curDrag.MM_startT = curTop;
curDrag.MM_bL=(cL<0)?null:curLeft-cL; curDrag.MM_bT=(cU<0)?null:curTop-cU;
curDrag.MM_bR=(cR<0)?null:curLeft+cR; curDrag.MM_bB=(cD<0)?null:curTop+cD;
curDrag.MM_LEFTRIGHT=0; curDrag.MM_UPDOWN=0; curDrag.MM_SNAPPED=false; //use in your JS!
document.onmousedown = MM_dragLayer; document.onmouseup = MM_dragLayer;
if (NS) document.captureEvents(Event.MOUSEDOWN|Event.MOUSEUP);
} else {
var theEvent = ((NS)?objName.type:event.type);
if (theEvent == 'mousedown') {
dragging = true;
dropReset = false;
//mouseX defined here
mouseX = (NS)?objName.pageX : event.clientX + document.body.scrollLeft;
mouseY = (NS)?objName.pageY : event.clientY + document.body.scrollTop;
var maxDragZ=null; document.MM_maxZ = 0;
for (i=0; i<document.allLayers.length; i++) { aLayer = document.allLayers[i];
var aLayerZ = (NS4)?aLayer.zIndex:parseInt(aLayer.style.zIndex);
if (aLayerZ > document.MM_maxZ) document.MM_maxZ = aLayerZ;
var isVisible = (((NS4)?aLayer.visibility:aLayer.style.visibility).indexOf('hid') == -1);
if (aLayer.MM_dragOk != null && isVisible) with (aLayer) {
var parentL=0; var parentT=0;
if (NS6) { parentLayer = aLayer.parentNode;
while (parentLayer != null && parentLayer.style.position) {
parentL += parseInt(parentLayer.offsetLeft); parentT += parseInt(parentLayer.offsetTop);
parentLayer = parentLayer.parentNode;
} } else if (IE) { parentLayer = aLayer.parentElement;
while (parentLayer != null && parentLayer.style.position) {
parentL += parentLayer.offsetLeft; parentT += parentLayer.offsetTop;
parentLayer = parentLayer.parentElement; } }
var tmpX=mouseX-(((NS4)?pageX:((NS6)?parseInt(style.left):style.pixelLeft)+parentL)+MM_hLeft);
var tmpY=mouseY-(((NS4)?pageY:((NS6)?parseInt(style.top):style.pixelTop) +parentT)+MM_hTop);
if (String(tmpX)=="NaN") tmpX=0; if (String(tmpY)=="NaN") tmpY=0;
var tmpW = MM_hWidth; if (tmpW <= 0) tmpW += ((NS4)?clip.width :offsetWidth);
var tmpH = MM_hHeight; if (tmpH <= 0) tmpH += ((NS4)?clip.height:offsetHeight);
if ((0 <= tmpX && tmpX < tmpW && 0 <= tmpY && tmpY < tmpH) && (maxDragZ == null
|| maxDragZ <= aLayerZ)) { curDrag = aLayer; maxDragZ = aLayerZ; } } }
if (curDrag) {
dragging = true;
document.onmousemove = MM_dragLayer; if (NS4) document.captureEvents(Event.MOUSEMOVE);
curLeft = (NS4)?curDrag.left:(NS6)?parseInt(curDrag.style.left):curDrag.style.pixelLeft;
curTop = (NS4)?curDrag.top:(NS6)?parseInt(curDrag.style.top):curDrag.style.pixelTop;
if (String(curLeft)=="NaN") curLeft=0; if (String(curTop)=="NaN") curTop=0;
MM_oldX = mouseX - curLeft; MM_oldY = mouseY - curTop;
document.MM_curDrag = curDrag; curDrag.MM_SNAPPED=false;
if(curDrag.MM_toFront) {
eval('curDrag.'+((NS4)?'':'style.')+'zIndex=document.MM_maxZ+1');
if (!curDrag.MM_dropBack) document.MM_maxZ++; }
retVal = false; if(!NS4&&!NS6) event.returnValue = false;
} } else if (theEvent == 'mousemove') {
if (document.MM_curDrag) with (document.MM_curDrag) {
dragging = true;
mouseX = (NS)?objName.pageX : event.clientX + document.body.scrollLeft;
mouseY = (NS)?objName.pageY : event.clientY + document.body.scrollTop;
newLeft = mouseX-MM_oldX; newTop = mouseY-MM_oldY;
if (MM_bL!=null) newLeft = Math.max(newLeft,MM_bL);
if (MM_bR!=null) newLeft = Math.min(newLeft,MM_bR);
if (MM_bT!=null) newTop = Math.max(newTop ,MM_bT);
if (MM_bB!=null) newTop = Math.min(newTop ,MM_bB);
MM_LEFTRIGHT = newLeft-MM_startL; MM_UPDOWN = newTop-MM_startT;
if (NS4) {left = newLeft; top = newTop;}
else if (NS6){style.left = newLeft; style.top = newTop;}
else {style.pixelLeft = newLeft; style.pixelTop = newTop;}
if (MM_dragJS) eval(MM_dragJS);
retVal = false; if(!NS) event.returnValue = false;
} } else if (theEvent == 'mouseup') {
document.onmousemove = null;
dragging = false;
if(mouseY<100) dropReset=true;

if (NS) document.releaseEvents(Event.MOUSEMOVE);
if (NS) document.captureEvents(Event.MOUSEDOWN); //for mac NS
if (document.MM_curDrag) with (document.MM_curDrag) {
if (typeof MM_targL =='number' && typeof MM_targT == 'number' &&
(Math.pow(MM_targL-((NS4)?left:(NS6)?parseInt(style.left):style.pixelLeft),2)+
Math.pow(MM_targT-((NS4)?top:(NS6)?parseInt(style.top):style.pixelTop),2))<=MM_tol) {
if (NS4) {left = MM_targL; top = MM_targT;}
else if (NS6) {style.left = MM_targL; style.top = MM_targT;}
else {style.pixelLeft = MM_targL; style.pixelTop = MM_targT;}
MM_SNAPPED = true; MM_LEFTRIGHT = MM_startL-MM_targL; MM_UPDOWN = MM_startT-MM_targT; }
if (MM_everyTime || MM_SNAPPED) eval(MM_dropJS);
if(MM_dropBack) {if (NS4) zIndex = MM_oldZ; else style.zIndex = MM_oldZ;}
retVal = false; if(!NS) event.returnValue = false; }
document.MM_curDrag = null;
}
if (NS) document.routeEvent(objName);



} return retVal;
}



 
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