var FileUploadUI=function(dUploadButtonEl,dUploadPathEl){try{this.init.apply(this,arguments);}catch(err){}}
FileUploadUI.prototype={init:function(dUploadButtonEl,dUploadPathEl){var bEl=this.getEl(dUploadButtonEl);var pEl=this.getEl(dUploadPathEl);if(!bEl.type||bEl.type!='file'||!bEl.form)return null;this._pathElementName=dUploadButtonEl.name;this._uploadButtonEl=bEl;this._uploadPathEl=pEl;if(this._uploadPathEl){this._eventListeners=[];this.addEvent(bEl,'change',this.syncFilePath);this.addEvent(dBtn.form,'submit',this.destruct);this.makeAccessible();}},getEl:function(el){if(typeof(el)==='string')el=document.getElementById(el);return el;},addEvent:function(el,type,fn){el=this.getEl(el);var sOn=el.attachEvent?'on':'';var oThis=this;var wfn=function(e){fn.call(oThis,e||window.event,el);};this._eventListeners.push([el,type,wfn]);if(sOn){el.attachEvent(sOn+type,wfn);}else if(el.addEventListener){el.addEventListener(type,wfn,false);};return wfn;},removeEvent:function(el,type,wfn){el=this.getEl(el);var sOn=el.attachEvent?'on':'';if(sOn){el.dettachEvent(sOn+type,wfn);}else if(el.addEventListener){el.removeEventListener(type,wfn,false);};},syncFilePath:function(){var dPath=this._uploadPathEl;var dBtn=this._uploadButtonEl;dPath.value=dBtn.value.split('/').pop().split('\\').pop();if(typeof(this.onChange)==='function'){this.onChange.call(this,dPath.value);}},onChange:function(){},makeAccessible:function(){var dPath=this._uploadPathEl;var dBtn=this._uploadButtonEl;dPath.tabIndex=-1;this.addEvent(dPath,'focus',this._onPathFocus);this.addEvent(dBtn,'focus',this._onBtnFocus);this.addEvent(dBtn,'blur',this._onBtnBlur);this.addEvent(dBtn,'keydown',this._onBtnKeyDown);this.makeAccessible=function(){};},_onPathFocus:function(){var dBtn=this._uploadButtonEl;dBtn.focus();return false;},_onBtnFocus:function(){var dPath=this._uploadPathEl;dPath.style.backgroundColor='none';},_onBtnKeyDown:function(e){if(e.keyCode!=13)return;var dBtn=this._uploadButtonEl;if(dBtn.click)dBtn.click();},_onBtnBlur:function(e){var dPath=this._uploadPathEl;dPath.style.backgroundColor='none';},destruct:function(){alert("Destroying!");var dPath=this._uploadPathEl;var dBtn=this._uploadButtonEl;dPath.disabled=true;dBtn.style.display='none';for(var i,arg;arg=this._eventListeners[i];i++){this.removeEvent.call(this,arg);}
this._eventListeners=null;}}