// toggleCheckBoxes -- used in combination with a "master" checkbox to toggle
// the state of a collection of child checkboxes.  Assumes the children and parent
// share a common container parent    
function toggleCheckBoxes(maincheckbox, parentId) { 
  var isChecked = maincheckbox.checked;
  var parentElement = document.getElementById(parentId);   
  var elements = parentElement.getElementsByTagName("input");
  for (i = 0; i < elements.length; i++) {   
    if(elements[i].type="checkbox") {       
      elements[i].checked = isChecked;
    }
  }
}

//
// stop a running job by its ID
//
function stopJob(button, jobId) {
    var really = confirm('Really stop this Job?');
    if (!really) return;
    window.alert('Job not stopped, stopJob should not be called from this page!');
}

//POST /jobResults/<job>/requestEmailNotification
function requestEmailNotification(cb, jobId, userEmail) {
    var opt = {
            method:    'post',
            postBody:  'userEmail='+userEmail,
            onSuccess:  ajaxEmailResponse,
            onFailure: function(t) {
                cb.checked = false;
                alert('Error ' + t.status);
            }
    } 
    new  Ajax.Request('/gp/jobResults/'+jobId+'/requestEmailNotification',opt);
}

//POST /jobResults/<job>/cancelEmailNotification
function cancelEmailNotification(cb, jobId, userEmail) {  
    var opt = { 
            method:    'post',
            postBody:  'userEmail='+userEmail,
            onSuccess: ajaxEmailResponse,
            onFailure: function(t) {
                cb.checked = true;
                alert('Error ' + t.status);
            }
    } 
    new  Ajax.Request('/gp/jobResults/'+jobId+'/cancelEmailNotification',opt);
}

function ajaxEmailResponse( req ) {
    if (req.readyState == 4) {
        if (req.status >= 200 && req.status < 300) {
            //alert('all is well on email submission') 
        } 
        else {
            alert("There was a problem in email notification:\n" + req.status + ' -- ' + req.statusText);
        } 
    }
}
    
   // Sends an asychronous request to the managed bean specified by the elExpression (e.g. jobsBean.taskCode).
   // elExpression The expression.
   // parameters The parameters to send to the bean method.
   // callbackFunction The function to invoke when a response is received from the server.
   // method Either post or get.
   
    function sendAjaxRequest(elExpression, parameters, callbackFunction, method, ajaxServletUrl) {
        var opt = {
          method: method,
          postBody: parameters + '&el=' + elExpression,
          onSuccess: callbackFunction,
          onFailure: function(t) {
            alert('Error ' + t.status + ' -- ' + t.statusText);
          }
        }
        new Ajax.Request(ajaxServletUrl, opt);
    }
     
    // Gets the form parameters for the form with the specified form id.
    // The form parameters as a string.
    
    function getFormParameters(formId) {
        var form = $(formId);
        if(form == null) {
            alert("Form " + formId + " not found.");
        }
        var params = "";
        for(var i = 0; i < form.elements.length; i++) {
            if(i > 0) {
                params += "&";
            }
            var e = form.elements[i];
            var val = e.value;
            if(e.type=='checkbox') {
                val = e.checked ? "on" : "";
            } 
            params += e.name + "=" + val;
        }
        return params;
    }
    
    function gup(name) {
		name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
		var regexS = "[\\?&]"+name+"=([^&#]*)";
		var regex = new RegExp( regexS );
		var results = regex.exec( window.location.href );
		if( results == null )
			return "";
		else
			return results[1];
	}