/*
Copyright (c) 2007, Yahoo! Inc. All rights reserved.
Code licensed under the BSD License:
http://developer.yahoo.net/yui/license.txt
version: 2.2.1
*/

if(!YAHOO.util.DragDropMgr){YAHOO.util.DragDropMgr=function(){var Event=YAHOO.util.Event;return{ids:{},handleIds:{},dragCurrent:null,dragOvers:{},deltaX:0,deltaY:0,preventDefault:true,stopPropagation:true,initalized:false,locked:false,interactionInfo:null,init:function(){this.initialized=true;},POINT:0,INTERSECT:1,STRICT_INTERSECT:2,mode:0,_execOnAll:function(sMethod,args){for(var i in this.ids){for(var j in this.ids[i]){var oDD=this.ids[i][j];if(!this.isTypeOfDD(oDD)){continue;}
oDD[sMethod].apply(oDD,args);}}},_onLoad:function(){this.init();Event.on(document,"mouseup",this.handleMouseUp,this,true);Event.on(document,"mousemove",this.handleMouseMove,this,true);Event.on(window,"unload",this._onUnload,this,true);Event.on(window,"resize",this._onResize,this,true);},_onResize:function(e){this._execOnAll("resetConstraints",[]);},lock:function(){this.locked=true;},unlock:function(){this.locked=false;},isLocked:function(){return this.locked;},locationCache:{},useCache:true,clickPixelThresh:3,clickTimeThresh:1000,dragThreshMet:false,clickTimeout:null,startX:0,startY:0,regDragDrop:function(oDD,sGroup){if(!this.initialized){this.init();}
if(!this.ids[sGroup]){this.ids[sGroup]={};}
this.ids[sGroup][oDD.id]=oDD;},removeDDFromGroup:function(oDD,sGroup){if(!this.ids[sGroup]){this.ids[sGroup]={};}
var obj=this.ids[sGroup];if(obj&&obj[oDD.id]){delete obj[oDD.id];}},_remove:function(oDD){for(var g in oDD.groups){if(g&&this.ids[g][oDD.id]){delete this.ids[g][oDD.id];}}
delete this.handleIds[oDD.id];},regHandle:function(sDDId,sHandleId){if(!this.handleIds[sDDId]){this.handleIds[sDDId]={};}
this.handleIds[sDDId][sHandleId]=sHandleId;},isDragDrop:function(id){return(this.getDDById(id))?true:false;},getRelated:function(p_oDD,bTargetsOnly){var oDDs=[];for(var i in p_oDD.groups){for(j in this.ids[i]){var dd=this.ids[i][j];if(!this.isTypeOfDD(dd)){continue;}
if(!bTargetsOnly||dd.isTarget){oDDs[oDDs.length]=dd;}}}
return oDDs;},isLegalTarget:function(oDD,oTargetDD){var targets=this.getRelated(oDD,true);for(var i=0,len=targets.length;i<len;++i){if(targets[i].id==oTargetDD.id){return true;}}
return false;},isTypeOfDD:function(oDD){return(oDD&&oDD.__ygDragDrop);},isHandle:function(sDDId,sHandleId){return(this.handleIds[sDDId]&&this.handleIds[sDDId][sHandleId]);},getDDById:function(id){for(var i in this.ids){if(this.ids[i][id]){return this.ids[i][id];}}
return null;},handleMouseDown:function(e,oDD){this.currentTarget=YAHOO.util.Event.getTarget(e);this.dragCurrent=oDD;var el=oDD.getEl();this.startX=YAHOO.util.Event.getPageX(e);this.startY=YAHOO.util.Event.getPageY(e);this.deltaX=this.startX-el.offsetLeft;this.deltaY=this.startY-el.offsetTop;this.dragThreshMet=false;this.clickTimeout=setTimeout(function(){var DDM=YAHOO.util.DDM;DDM.startDrag(DDM.startX,DDM.startY);},this.clickTimeThresh);},startDrag:function(x,y){clearTimeout(this.clickTimeout);if(this.dragCurrent){this.dragCurrent.b4StartDrag(x,y);this.dragCurrent.startDrag(x,y);}
this.dragThreshMet=true;},handleMouseUp:function(e){if(!this.dragCurrent){return;}
clearTimeout(this.clickTimeout);if(this.dragThreshMet){this.fireEvents(e,true);}else{}
this.stopDrag(e);this.stopEvent(e);},stopEvent:function(e){if(this.stopPropagation){YAHOO.util.Event.stopPropagation(e);}
if(this.preventDefault){YAHOO.util.Event.preventDefault(e);}},stopDrag:function(e){if(this.dragCurrent){if(this.dragThreshMet){this.dragCurrent.b4EndDrag(e);this.dragCurrent.endDrag(e);}
this.dragCurrent.onMouseUp(e);}
this.dragCurrent=null;this.dragOvers={};},handleMouseMove:function(e){if(!this.dragCurrent){return true;}
if(YAHOO.util.Event.isIE&&!e.button){this.stopEvent(e);return this.handleMouseUp(e);}
if(!this.dragThreshMet){var diffX=Math.abs(this.startX-YAHOO.util.Event.getPageX(e));var diffY=Math.abs(this.startY-YAHOO.util.Event.getPageY(e));if(diffX>this.clickPixelThresh||diffY>this.clickPixelThresh){this.startDrag(this.startX,this.startY);}}
if(this.dragThreshMet){this.dragCurrent.b4Drag(e);this.dragCurrent.onDrag(e);this.fireEvents(e,false);}
this.stopEvent(e);return true;},fireEvents:function(e,isDrop){var dc=this.dragCurrent;if(!dc||dc.isLocked()){return;}
var x=YAHOO.util.Event.getPageX(e);var y=YAHOO.util.Event.getPageY(e);var pt=new YAHOO.util.Point(x,y);var pos=dc.getTargetCoord(pt.x,pt.y);var el=dc.getDragEl();curRegion=new YAHOO.util.Region(pos.y,pos.x+el.offsetWidth,pos.y+el.offsetHeight,pos.x);var oldOvers=[];var outEvts=[];var overEvts=[];var dropEvts=[];var enterEvts=[];for(var i in this.dragOvers){var ddo=this.dragOvers[i];if(!this.isTypeOfDD(ddo)){continue;}
if(!this.isOverTarget(pt,ddo,this.mode,curRegion)){outEvts.push(ddo);}
oldOvers[i]=true;delete this.dragOvers[i];}
for(var sGroup in dc.groups){if("string"!=typeof sGroup){continue;}
for(i in this.ids[sGroup]){var oDD=this.ids[sGroup][i];if(!this.isTypeOfDD(oDD)){continue;}
if(oDD.isTarget&&!oDD.isLocked()&&oDD!=dc){if(this.isOverTarget(pt,oDD,this.mode,curRegion)){if(isDrop){dropEvts.push(oDD);}else{if(!oldOvers[oDD.id]){enterEvts.push(oDD);}else{overEvts.push(oDD);}
this.dragOvers[oDD.id]=oDD;}}}}}
this.interactionInfo={out:outEvts,enter:enterEvts,over:overEvts,drop:dropEvts,point:pt,draggedRegion:curRegion,sourceRegion:this.locationCache[dc.id],validDrop:isDrop};if(isDrop&&!dropEvts.length){this.interactionInfo.validDrop=false;dc.onInvalidDrop(e);}
if(this.mode){if(outEvts.length){dc.b4DragOut(e,outEvts);dc.onDragOut(e,outEvts);}
if(enterEvts.length){dc.onDragEnter(e,enterEvts);}
if(overEvts.length){dc.b4DragOver(e,overEvts);dc.onDragOver(e,overEvts);}
if(dropEvts.length){dc.b4DragDrop(e,dropEvts);dc.onDragDrop(e,dropEvts);}}else{var len=0;for(i=0,len=outEvts.length;i<len;++i){dc.b4DragOut(e,outEvts[i].id);dc.onDragOut(e,outEvts[i].id);}
for(i=0,len=enterEvts.length;i<len;++i){dc.onDragEnter(e,enterEvts[i].id);}
for(i=0,len=overEvts.length;i<len;++i){dc.b4DragOver(e,overEvts[i].id);dc.onDragOver(e,overEvts[i].id);}
for(i=0,len=dropEvts.length;i<len;++i){dc.b4DragDrop(e,dropEvts[i].id);dc.onDragDrop(e,dropEvts[i].id);}}},getBestMatch:function(dds){var winner=null;var len=dds.length;if(len==1){winner=dds[0];}else{for(var i=0;i<len;++i){var dd=dds[i];if(this.mode==this.INTERSECT&&dd.cursorIsOver){winner=dd;break;}else{if(!winner||!winner.overlap||(dd.overlap&&winner.overlap.getArea()<dd.overlap.getArea())){winner=dd;}}}}
return winner;},refreshCache:function(groups){var g=groups||this.ids;for(var sGroup in g){if("string"!=typeof sGroup){continue;}
for(var i in this.ids[sGroup]){var oDD=this.ids[sGroup][i];if(this.isTypeOfDD(oDD)){var loc=this.getLocation(oDD);if(loc){this.locationCache[oDD.id]=loc;}else{delete this.locationCache[oDD.id];}}}}},verifyEl:function(el){try{if(el){var parent=el.offsetParent;if(parent){return true;}}}catch(e){}
return false;},getLocation:function(oDD){if(!this.isTypeOfDD(oDD)){return null;}
var el=oDD.getEl(),pos,x1,x2,y1,y2,t,r,b,l;try{pos=YAHOO.util.Dom.getXY(el);}catch(e){}
if(!pos){return null;}
x1=pos[0];x2=x1+el.offsetWidth;y1=pos[1];y2=y1+el.offsetHeight;t=y1-oDD.padding[0];r=x2+oDD.padding[1];b=y2+oDD.padding[2];l=x1-oDD.padding[3];return new YAHOO.util.Region(t,r,b,l);},isOverTarget:function(pt,oTarget,intersect,curRegion){var loc=this.locationCache[oTarget.id];if(!loc||!this.useCache){loc=this.getLocation(oTarget);this.locationCache[oTarget.id]=loc;}
if(!loc){return false;}
oTarget.cursorIsOver=loc.contains(pt);var dc=this.dragCurrent;if(!dc||(!intersect&&!dc.constrainX&&!dc.constrainY)){return oTarget.cursorIsOver;}
oTarget.overlap=null;if(!curRegion){var pos=dc.getTargetCoord(pt.x,pt.y);var el=dc.getDragEl();curRegion=new YAHOO.util.Region(pos.y,pos.x+el.offsetWidth,pos.y+el.offsetHeight,pos.x);}
var overlap=curRegion.intersect(loc);if(overlap){oTarget.overlap=overlap;return(intersect)?true:oTarget.cursorIsOver;}else{return false;}},_onUnload:function(e,me){this.unregAll();},unregAll:function(){if(this.dragCurrent){this.stopDrag();this.dragCurrent=null;}
this._execOnAll("unreg",[]);for(i in this.elementCache){delete this.elementCache[i];}
this.elementCache={};this.ids={};},elementCache:{},getElWrapper:function(id){var oWrapper=this.elementCache[id];if(!oWrapper||!oWrapper.el){oWrapper=this.elementCache[id]=new this.ElementWrapper(YAHOO.util.Dom.get(id));}
return oWrapper;},getElement:function(id){return YAHOO.util.Dom.get(id);},getCss:function(id){var el=YAHOO.util.Dom.get(id);return(el)?el.style:null;},ElementWrapper:function(el){this.el=el||null;this.id=this.el&&el.id;this.css=this.el&&el.style;},getPosX:function(el){return YAHOO.util.Dom.getX(el);},getPosY:function(el){return YAHOO.util.Dom.getY(el);},swapNode:function(n1,n2){if(n1.swapNode){n1.swapNode(n2);}else{var p=n2.parentNode;var s=n2.nextSibling;if(s==n1){p.insertBefore(n1,n2);}else if(n2==n1.nextSibling){p.insertBefore(n2,n1);}else{n1.parentNode.replaceChild(n2,n1);p.insertBefore(n1,s);}}},getScroll:function(){var t,l,dde=document.documentElement,db=document.body;if(dde&&(dde.scrollTop||dde.scrollLeft)){t=dde.scrollTop;l=dde.scrollLeft;}else if(db){t=db.scrollTop;l=db.scrollLeft;}else{}
return{top:t,left:l};},getStyle:function(el,styleProp){return YAHOO.util.Dom.getStyle(el,styleProp);},getScrollTop:function(){return this.getScroll().top;},getScrollLeft:function(){return this.getScroll().left;},moveToEl:function(moveEl,targetEl){var aCoord=YAHOO.util.Dom.getXY(targetEl);YAHOO.util.Dom.setXY(moveEl,aCoord);},getClientHeight:function(){return YAHOO.util.Dom.getViewportHeight();},getClientWidth:function(){return YAHOO.util.Dom.getViewportWidth();},numericSort:function(a,b){return(a-b);},_timeoutCount:0,_addListeners:function(){var DDM=YAHOO.util.DDM;if(YAHOO.util.Event&&document){DDM._onLoad();}else{if(DDM._timeoutCount>2000){}else{setTimeout(DDM._addListeners,10);if(document&&document.body){DDM._timeoutCount+=1;}}}},handleWasClicked:function(node,id){if(this.isHandle(id,node.id)){return true;}else{var p=node.parentNode;while(p){if(this.isHandle(id,p.id)){return true;}else{p=p.parentNode;}}}
return false;}};}();YAHOO.util.DDM=YAHOO.util.DragDropMgr;YAHOO.uti