//jsjam-flatten: document
//jsjam-keep: NID
//jsjam-keep: PPID
//jsjam-keep: PID
//jsjam-keep: BC
//jsjam-keep: js
//jsjam-keep: show_navs
//jsjam-keep: hide_navs
//jsjam-keep: submitted
//jsjam-keep: no_submit_guard
//jsjam-keep: preventDefault
//jsjam-keep: popup
//jsjam-keep: autofocus

function addHandler(target,eventName,handlerName) { 
  if ( target.addEventListener ) { 
    target.addEventListener(eventName, function(e){return target[handlerName](e);}, false);
  } else if ( target.attachEvent ) { 
    target.attachEvent("on" + eventName, function(e){return target[handlerName](e);});
  } else { 
    var originalHandler = target["on" + eventName]; 
    if ( originalHandler ) { 
      target["on" + eventName] = function(e){originalHandler(e);return target[handlerName](e);}; 
    } else { 
      target["on" + eventName] = target[handlerName]; 
    } 
  } 
}

// dynamically add nid=X&js=1&ppid=N to href
function a_show_navs(e) {
    // disable all page submissions
    if (!this.no_submit_guard
            && (window.submitted++) && (window.submitted <= 3) && (this.href.indexOf("AMCBackHandler.html") == -1) ) {
         // If nid parameter exists, then alert, and return [BZ22862]
        if (this.href.indexOf("nid") > -1) {
            alert("Page already submitted");
            if (e.preventDefault) e.preventDefault();
            return false;
        }else{
            // if it has no nid parameter, then the page is being accessed from
            // another menu element; may not need to alert.
            window.submitted=0;
        }
    }

    if (!this.no_navs) {
		if (this.href.search(new RegExp('([?&])nid=([^&]*)(&.*)?$'))==-1){
			this.href += this.href.indexOf("?")==-1 ? "?nid="+NID : "&nid="+NID;
		}
		else if (RegExp.$2 != NID){
            if ((this.href.search(new RegExp('([?&])jxid=([^&]*)(&.*)?$'))==-1) && (RegExp.$2 != 8) && (RegExp.$2 != 11)) {
			    this.href = this.href.replace(
				    new RegExp('([?&])(nid=([^&]*))((&).*)?$'),
				    RegExp.$1 + 'nid=' + NID + RegExp.$4);
            }
		}
        if (this.href.search(new RegExp('[?&]ppid='))==-1)
            this.href += "&ppid="+PPID;
        if (this.href.search(new RegExp('[?&]pid='))==-1)
            this.href += "&pid="+PID;
        if (this.href.search(new RegExp('[?&]bc='))==-1)
            this.href += "&bc="+BC;
        this.href += "&js=1";
    }
    return true;
}

// dynamically remove nid=X from href
function a_hide_navs() {
    this.href = this.href.replace(new RegExp('([?&])(nid=([^&]*))(&.*)?$'),
        RegExp.$1 == "?" ? (RegExp.$4 == "&" ? "?" : "") : RegExp.$4);
    return true;
}

function a_popup(e, name, options) {
	this.no_submit_guard=true; 
    window.open(this.href, name, options);
    if (e.preventDefault) e.preventDefault();
    return false;
}

// dynamically enable nid/js form controls
function form_show_navs(e) {
    // disable all page submissions
    if (!this.no_submit_guard 
            && (window.submitted++) && (window.submitted <= 3)) {
        alert("Form already submitted");
        if (e.preventDefault) e.preventDefault();
        return false;
    }

    //for (var submit_i=0; submit_i <document ; submit_i++)
    if (this.js){
        this.js.disabled=false;
        this.js.value=1;
    }
    this.nid.disabled=false;
    this.ppid.value=PPID;
    this.pid.value=PID;
    this.bc.value=BC;
    return true;
}

// dynamically disable nid/js form controls
function form_hide_navs() { 
    this.js.disabled=true; 
    this.js.value=0; 
    this.nid.disabled=true; 
    return true;
}

// add nav_id,js to all <a> tags
var a_elems = document.getElementsByTagName("a");
for (var a_i=0; a_i<a_elems.length; a_i++) {
    var a_o = a_elems[a_i];
    //a_o.hide_navs= a_hide_navs;
    //a_o.hide_navs();
    a_o.popup = a_popup;
    a_o.show_navs = a_show_navs;
    addHandler(a_o, 'click', 'show_navs');
}

// disable nav_id, enable js to all <form> tags
for (var form_i=0; form_i<document.forms.length; form_i++) {
    var form_o = document.forms[form_i];
    //form_o.hide_navs = form_hide_navs;
    //form_o.hide_navs();
    form_o.show_navs = form_show_navs;
    addHandler(form_o, 'submit', 'show_navs');
}

// auto-focus on first visible form element not being 'languages'
// this is called in autohandler by body.onload() DOM event
function autofocus(){
    var forms = document.forms;
    if( forms.length ){
        var done = false;
        for( var formNumber = 0; formNumber < forms.length; formNumber++ ){
            if( forms[ formNumber ].id == 'languages' ){ continue }
            for( var elem_i = 0; elem_i < forms[ formNumber ].elements.length; elem_i++ ){
                if( ! forms[ formNumber ].elements[ elem_i ].disabled
                   && forms[ formNumber ].elements[ elem_i ].type != "hidden" ){
                    forms[ formNumber ].elements[ elem_i ].focus();
                    done = true;
                    break;
                }
            }
            if( done ){ break }
        }
    }
}

window.submitted=0;