if (!document.getElementById){
    document.getElementById = function(id){return document.all[id];}
}

function create_xmlhttp(){
    var req = false;
    // branch for native XMLHttpRequest object
    if(window.XMLHttpRequest) {
        try {
            req = new XMLHttpRequest();
        } catch(e) {
            req = false;
        }
    // branch for IE/Windows ActiveX version
    } else if(window.ActiveXObject){
        try {
            req = new ActiveXObject("Msxml2.XMLHTTP");
        } catch(e) {
            try {
                req = new ActiveXObject("Microsoft.XMLHTTP");
            } catch(e) {
                req = false;
            }
        }
    }
    return req;
}

function node2html(n){
    var res = '';
    if (!n)return '';
    if (n.nodeName=='#text' || n.nodeName=='#cdata')return n.nodeValue.replace('<', '&lt;').replace('>', '&gt;');
    n = n.firstChild;
    while (n){
        if (n.nodeName=='#text' || n.nodeName=='#cdata'){
            res += n.nodeValue.replace('<', '&lt;').replace('>', '&gt;');
        }
        else if (n.nodeType==1){
            res += '<'+n.nodeName;
            res += '>'+node2html(n)+'</'+n.nodeName+'>';
        }
        n = n.nextSibling;
    }
    return res;
}

function getNodePosition(n){
    if (!n)return {x:0, y:0};
    if (n.offsetParent){
        var pos = getNodePosition(n.offsetParent);
        pos.x+=n.offsetLeft;
        pos.y+=n.offsetTop;
        return pos;
    }
    else {
        return {x:n.offsetLeft, y:n.offsetTop};
    }
}

var current_menu = null;
var hide_menu_to = -1;
var show_menu_to = -1;



function show_menu(id, anchor, dx, dy){
	window.clearTimeout(show_menu_to);
	window.clearTimeout(hide_menu_to);
	show_menu_id = id;
	show_menu_anchor = anchor;
	show_menu_dx = dx;
	show_menu_dy = dy;
	show_menu_to = window.setTimeout("show_menu2()", 400);
}

var show_menu_id = "";
var show_menu_anchor = "";
var show_menu_dx = 0;
var show_menu_dy = 0;

function show_menu2(){
	id = show_menu_id;
	anchor = show_menu_anchor;
	dx = show_menu_dx;
	dy = show_menu_dy;

    if (current_menu && current_menu.id!=id){
        current_menu.style.display = 'none';
        current_menu = null;
    }
    
    var n = document.getElementById(id);
    window.clearTimeout(hide_menu_to);hide_menu_to = -1;
    if (!n)return;
    
    if (anchor){
        var pos = getNodePosition(anchor);
        n.style.left = (pos.x+dx)+'px';
        n.style.top = (pos.y+dy)+'px';
    }
    n.style.display = 'block';
    current_menu = n;
}

function hide_menu(){
	window.clearTimeout(show_menu_to);
	window.clearTimeout(hide_menu_to);
    hide_menu_to = window.setTimeout('hide_menu2();', 400);
}

function hide_menu2(){
    hide_menu_to = -1;
    if (current_menu){
        current_menu.style.display = 'none';
        current_menu = null;
    }
}

function menuitem_over(n){
    show_menu(current_menu.id);
    n.className = 'over';
    if (n.nodeName.toLowerCase()=="td")n.previousSibling.className = 'over'; else n.nextSibling.className = 'over';
    
}

function menuitem_out(n){
    hide_menu();
    n.className = '';
    if (n.nodeName.toLowerCase()=="td")n.previousSibling.className = ''; else n.nextSibling.className = '';
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_nbGroup(event, grpName) { //v6.0
  var i,img,nbArr,args=MM_nbGroup.arguments;
  if (event == "init" && args.length > 2) {
    if ((img = MM_findObj(args[2])) != null && !img.MM_init) {
      img.MM_init = true; img.MM_up = args[3]; img.MM_dn = img.src;
      if ((nbArr = document[grpName]) == null) nbArr = document[grpName] = new Array();
      nbArr[nbArr.length] = img;
      for (i=4; i < args.length-1; i+=2) if ((img = MM_findObj(args[i])) != null) {
        if (!img.MM_up) img.MM_up = img.src;
        img.src = img.MM_dn = args[i+1];
        nbArr[nbArr.length] = img;
    } }
  } else if (event == "over") {
    document.MM_nbOver = nbArr = new Array();
    for (i=1; i < args.length-1; i+=3) if ((img = MM_findObj(args[i])) != null) {
      if (!img.MM_up) img.MM_up = img.src;
      img.src = (img.MM_dn && args[i+2]) ? args[i+2] : ((args[i+1])? args[i+1] : img.MM_up);
      nbArr[nbArr.length] = img;
    }
  } else if (event == "out" ) {
    for (i=0; i < document.MM_nbOver.length; i++) {
      img = document.MM_nbOver[i]; img.src = (img.MM_dn) ? img.MM_dn : img.MM_up; }
  } else if (event == "down") {
    nbArr = document[grpName];
    if (nbArr)
      for (i=0; i < nbArr.length; i++) { img=nbArr[i]; img.src = img.MM_up; img.MM_dn = 0; }
    document[grpName] = nbArr = new Array();
    for (i=2; i < args.length-1; i+=2) if ((img = MM_findObj(args[i])) != null) {
      if (!img.MM_up) img.MM_up = img.src;
      img.src = img.MM_dn = (args[i+1])? args[i+1] : img.MM_up;
      nbArr[nbArr.length] = img;
  } }
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function poll_results(id) {
	var id;
	myWindow=window.open('/polls/show_results/' + id,'poll_results','width=450,height=300');
	myWindow.focus();
}


function returnObjById( id )
{
    if (document.getElementById)
        var returnVar = document.getElementById(id);
    else if (document.all)
        var returnVar = document.all[id];
    else if (document.layers)
        var returnVar = document.layers[id];
    return returnVar;
}


function load_issue (id) {
	new Ajax.Updater('issue_content_' + id, '/articles/toggle_issue/' + id, {asynchronous:true, evalScripts:true});
	return false;
}

function toggleIssue (id) {
		obj = returnObjById("issue_content_" + id);
        if(!obj)return;
		if (obj.getAttribute("selected") == "true") { 
			obj.style.display = 'none';
			unselect (obj);
		} else { 
			obj.style.display = 'block';	
			select(obj);
			load_issue(id);
		}
	}
	
function select (obj) {
	obj.setAttribute('selected','true');
}

function unselect (obj) {
	obj.setAttribute('selected','false');;
}

function show_slideshow(id) {
  win=window.open('http://www.dentalproductsreport.com/slideshows/show/'+ id,"slideshow","height=515,width=750,status=no,toolbar=no,menubar=no,location=no,scrollbars=no");
  win.focus();
}

function search_dd_show(){
    if (document.getElementById('search_dropdown').style.display=='none')
        document.getElementById('search_dropdown').style.display = 'block';
    else
        document.getElementById('search_dropdown').style.display = 'none';
}
function search_dd_hide(){
    document.getElementById('search_dropdown').style.display = 'none';
}
function search_dd_select(name, v){
    search_dd_hide(); 
    document.getElementById('search-searchtype').value = v;
    document.getElementById('topsearch-select').innerHTML = name;
    if (name=="Dental Products Report")document.getElementById('topsearch-select').innerHTML = "Dental Products";
    for (var i=1; i<=3; i++){
        var n = document.getElementById('search_dropdown_'+i);
        if (n.innerHTML==name)
            n.style.display = 'none';
        else
            n.style.display = 'block';
    }
}