A4J_Command=Class.create();A4J_Command.prototype={initialize:function(e,params,target){this.form=Event.findElement(e,'form');this.target=target;this.objectsCreated=new Array();this.oldValuesOfExistingInputs={};this.appendParameters(params);this.processClick();this.cleanUp();},processClick:function(){var form=this.form;var targ=form.target;$A(this.objectsCreated).each(function(node){form.appendChild(node);});if(this.target){form.target=this.target;}
form.submit();form.target=targ;},appendParameters:function(params){var dis=this;$H(params).each(function(parameter){dis.createOrInitHiddenInput(parameter.key,parameter.value);});},cleanUp:function(){var form=this.form;$H(this.oldValuesOfExistingInputs).each(function(input){($(input.key)||form[input.key]).value=input.value;});$A(this.objectsCreated).each(function(node){form.removeChild(node);});delete(this.objectsCreated);},createOrInitHiddenInput:function(name,value){var hiddenObj=$(name)||this.form[name];if(!hiddenObj){hiddenObj=document.createElement('input');hiddenObj.setAttribute('type','hidden');hiddenObj.setAttribute('name',name);hiddenObj.setAttribute('id',name);this.objectsCreated.push(hiddenObj);}else{this.oldValuesOfExistingInputs[name]=hiddenObj.value;}
hiddenObj.value=value;}};