// Left Navigation Script for NYC.gov Agency Templates
// Returns path with folder and file, else -1.
// ex. /folder/file.html
var drawnSub = false;
var currentId, element, x = 0;

function Over(element) {
    var el = document.getElementById('arrow_' + element);
    el.className = 'nav_cell_arrow_hover';
    el = document.getElementById('elem_' + element);
    el.className = 'nav_cell_hover';
}

function Out(element) {
    var el = document.getElementById('arrow_' + element);
    el.className = 'nav_cell_arrow';
    el = document.getElementById('elem_' + element);
    el.className = 'nav_cell';
}

function OverContact(element) {
    var el = document.getElementById('arrow_' + element);
    el.className = 'nav_cell_arrow_hover';
    el = document.getElementById('elem_' + element);
    el.className = 'nav_cell_contact_hover';
}

function OutContact(element) {
    var el = document.getElementById('arrow_' + element);
    el.className = 'nav_cell_arrow';
    el = document.getElementById('elem_' + element);
    el.className = 'nav_cell_contact';
}

function getPath(thePath) {
    if (thePath === null) {
        return -1;
    }
    var startSlash = thePath.lastIndexOf("/");
    startSlash = thePath.lastIndexOf("/", startSlash - 1);

    if (startSlash === -1 && thePath.indexOf("#") !== -1) {
        return "#";
    }

    if (startSlash === -1) {
        return -1;
    } else {
        return thePath.substr(startSlash, thePath.length - startSlash);
    }
}
// Returns folder, else -1.
// ex. /folder/
function getFolder(thePath) {
    if (thePath == null) { return -1; }
    var startSlash = thePath.lastIndexOf("/");
    startSlash2 = thePath.lastIndexOf("/",startSlash -1);
    
    if (startSlash == -1 && thePath.indexOf("#") != -1) {
        return "#"; 
    }

    if(startSlash == startSlash2) { return -1; }
    if (startSlash == -1 || startSlash2 == -1) {
        return -1;
    } else {
        return thePath.substr(startSlash2, startSlash - startSlash2 + 1);
    }
}
if ((window.location.href).indexOf("translate_c?hl=en") == -1) { //do not show graphic nav if within google translate
    var currentURL = getPath(location.href);
    var expandCurrentNode = false;
    var haveNodes = false;

    document.write('<table width="180" border="0" cellpadding="0" cellspacing="0" bgcolor="FFFFFF">');
    document.write('<form action="http://search1.nyc.gov/search?" method="GET" name="gs" style="margin-bottom:0">');
    document.write("<tr><td align='center' class='border'><img src='../../includes/site_images/spacers/spacer.gif' border='0' width='20' height='15'><br>");
    document.write("<img src='../../includes/site_images/spacers/spacer.gif' width='12' height='1' border='0'><input name='q' type='text' class='search-box' id='q' size='12' style='width : 108px' align='left'>");
    document.write("<input value='xml_no_dtd' name='output' type='hidden'><input value='default_collection' name='site' type='hidden'><input value='agency_frontend' name='proxystylesheet' type='hidden'><input value='agency_frontend' name='client' type='hidden'><input value='www.nyc.gov/html/dot' name='sitesearch' type='hidden'>");
    document.write("<input name='go' type='image' id='go' onMouseOut='MM_swapImgRestore()' onMouseOver=\"MM_swapImage('go','','../../includes/site_images/misc/search_button_over.gif',1)\" src='../../includes/site_images/misc/search_button.gif'  alt='Search' width='60' height='21' border='0'><br><img src='../../includes/site_images/spacers/spacer.gif' width='1' height='10' border='0'></td></tr></form></table>");

    document.write('<table width="180px" border="0" cellspacing="0" cellpadding="0">');

    for(x=0;x<NAV_NODES.length;x++) {
        expandCurrentNode = false;
        haveNodes = false;

        //check for sub nodes
        if (NAV_NODES[x] == null) break;
        if (NAV_NODES[x].length > 2) {
            if (currentURL.indexOf(getFolder(NAV_NODES[x][1])) != -1) {
                //alert(getFolder(NAV_NODES[x][1]));
                expandCurrentNode = true;
            }
            for(y=2;y<NAV_NODES[x].length;y++) {
                if (NAV_NODES[x][y] == null) break;
                if (NAV_NODES[x][y][1] != null) haveNodes = true;
                if (currentURL.indexOf(getPath(NAV_NODES[x][y][1])) != -1) {
                    expandCurrentNode = true;
                }
            }
        }

        //if (x != 0) {
        //  document.write('<img src="../../includes/site_images/nav/divider.gif" width="136" height="9"><br>');
        //}
        
        //draw main nodes
        if (currentURL.indexOf(getPath(NAV_NODES[x][1])) != -1 || expandCurrentNode == true) {
        document.write("<tr><td width='175' valign='top'><table width='175' border='0' cellspacing='0' cellpadding='0'><tr><td width='21' onMouseDown=\"dcsMultiTrack('DCSext.o_ld','"+escape(NAV_NODES[x][0])+"','DCSext.o_nav','DOT_Left_Nav','DCSext.o_nac','1');\" onClick=\"window.location='" + NAV_NODES[x][1] + "';\"  class='nav_cell_arrow_hover' id='arrow_" + currentId + "' valign='bottom'><img src='../../includes/site_images/spacers/spacer.gif' width='20' height='25' id='nav_cell_arrow_hover'></td><td width='154' class='nav_cell_hover' onMouseDown=\"dcsMultiTrack('DCSext.o_ld','"+escape(NAV_NODES[x][0])+"','DCSext.o_nav','DOT_Left_Nav','DCSext.o_nac','1');\" onClick=\"window.location='" + NAV_NODES[x][1] + "';\" id='elem_" + currentId + "'><img src='../../includes/site_images/spacers/spacer.gif' width='1' height='5'><br>" + NAV_NODES[x][0] + "<br><img src='../../includes/site_images/spacers/spacer.gif' width='1' height='4'></td></tr></table></td><td><img src='../../includes/site_images/spacers/spacer.gif' width='5' height='25'></td></tr>");
            document.write("<tr><td width='175' bgcolor='FFFFFF'><img src='../../includes/site_images/spacers/spacer.gif' width='175' height='2'></td><td><img src='../../includes/site_images/spacers/spacer.gif' width='5' height='2'></td></tr>");
            expandCurrentNode = true;
        } else if (NAV_NODES[x][0]=='Contact DOT') {
            //x++;
            currentId = x;
            
            //alert(x);
            //alert('elem_' + currentId)
        document.write("<tr><td width='175'><table width='175' border='0' cellspacing='0' cellpadding='0'><tr><td width='21' onMouseDown=\"dcsMultiTrack('DCSext.o_ld','"+escape(NAV_NODES[x][0])+"','DCSext.o_nav','DOT_Left_Nav','DCSext.o_nac','1');\" onClick=\"window.location='" + NAV_NODES[x][1] + "';\"  class='nav_cell_arrow' onmouseover='OverContact(" + currentId + ")' onmouseout='OutContact(" + currentId + ")' id='arrow_" + currentId + "' valign='top'><img src='../../includes/site_images/spacers/spacer.gif' width='20' height='25' align='absmiddle' id='nav_cell_arrow'></td><td width='154' class='nav_cell_contact' onMouseDown=\"dcsMultiTrack('DCSext.o_ld','"+escape(NAV_NODES[x][0])+"','DCSext.o_nav','DOT_Left_Nav','DCSext.o_nac','1');\" onClick=\"window.location='" + NAV_NODES[x][1] + "';\" onmouseover='OverContact(" + currentId + ")' onmouseout='OutContact(" + currentId + ")'  id='elem_" + currentId + "'><img src='../../includes/site_images/spacers/spacer.gif' width='1' height='5'><br>" + NAV_NODES[x][0] + "<br><img src='../../includes/site_images/spacers/spacer.gif' width='1' height='4'></td></tr></table></td><td><img src='../../includes/site_images/spacers/spacer.gif' width='5' height='25'></td></tr>");
            document.write("<tr><td width='175' bgcolor='FFFFFF'><img src='../../includes/site_images/spacers/spacer.gif' width='175' height='2'></td><td><img src='../../includes/site_images/spacers/spacer.gif' width='5' height='2'></td></tr>");
            
        } else {
            //x++;
            currentId = x;
            
            //alert(x);
            //alert('elem_' + currentId)
        document.write("<tr><td width='175'><table width='175' border='0' cellspacing='0' cellpadding='0'><tr><td width='21' onMouseDown=\"dcsMultiTrack('DCSext.o_ld','"+escape(NAV_NODES[x][0])+"','DCSext.o_nav','DOT_Left_Nav','DCSext.o_nac','1');\" onClick=\"window.location='" + NAV_NODES[x][1] + "';\"  class='nav_cell_arrow' onmouseover='Over(" + currentId + ")' onmouseout='Out(" + currentId + ")' id='arrow_" + currentId + "' valign='top'><img src='../../includes/site_images/spacers/spacer.gif' width='20' height='25' align='absmiddle' id='nav_cell_arrow'></td><td width='154' class='nav_cell' onMouseDown=\"dcsMultiTrack('DCSext.o_ld','"+escape(NAV_NODES[x][0])+"','DCSext.o_nav','DOT_Left_Nav','DCSext.o_nac','1');\" onClick=\"window.location='" + NAV_NODES[x][1] + "';\" onmouseover='Over(" + currentId + ")' onmouseout='Out(" + currentId + ")'  id='elem_" + currentId + "'><img src='../../includes/site_images/spacers/spacer.gif' width='1' height='5'><br>" + NAV_NODES[x][0] + "<br><img src='../../includes/site_images/spacers/spacer.gif' width='1' height='4'></td></tr></table></td><td><img src='../../includes/site_images/spacers/spacer.gif' width='5' height='25'></td></tr>");
            document.write("<tr><td width='175' bgcolor='FFFFFF'><img src='../../includes/site_images/spacers/spacer.gif' width='175' height='2'></td><td><img src='../../includes/site_images/spacers/spacer.gif' width='5' height='2'></td></tr>");
            
        }

        //draw sub nodes
        if (NAV_NODES[x].length > 2 && expandCurrentNode == true) {
            for(y=2;y<NAV_NODES[x].length;y++) {
                if (NAV_NODES[x][y] == null) break;
                //alert(getPath(NAV_NODES[x][y][1]));
                if (currentURL.indexOf(getPath(NAV_NODES[x][y][1])) != -1) {
                    //alert(currentURL.indexOf(getPath(NAV_NODES[x][y][1])));
                    if (y==2) { 
                        document.write("<tr><td width='175' bgcolor='FFFFFF'><img src='../../includes/site_images/spacers/spacer.gif' width='175' height='9'></td><td><img src='../../includes/site_images/spacers/spacer.gif' width='5' height='9'></td></tr><tr><td width='175'><table border='0' cellspacing='0' cellpadding='0' width='175'><td width='20'><img src='../../includes/site_images/spacers/spacer.gif' width='20' height='2'></td><td width='155' valign='top' align='left'>");
                        document.write("<a href='" + NAV_NODES[x][y][1] + "' class='nav_subsection_active'>" + NAV_NODES[x][y][0] + "</a><br>");
                        drawnSub = true;
                    } else { document.write("<a href='" + NAV_NODES[x][y][1] + "' class='nav_subsection_active'>" + NAV_NODES[x][y][0] + "</a><br>");
                        drawnSub = true;
                    }
                } else {            
                    if (y==2){
                        document.write("<tr><td width='20' bgcolor='FFFFFF'><img src='../../includes/site_images/spacers/spacer.gif' width='175' height='9'></td><td><img src='../../includes/site_images/spacers/spacer.gif' width='5' height='9'></td></tr><tr><td width='175'><table border='0' cellspacing='0' cellpadding='0' width='175'><tr><td width='20'><img src='../../includes/site_images/spacers/spacer.gif' width='20' height='1'></td><td width='155' valign='top' align='left'>");
                        document.write("<a onMouseDown=\"dcsMultiTrack('DCSext.o_ld','"+escape(NAV_NODES[x][0])+"-"+escape(NAV_NODES[x][y][0])+"','DCSext.o_nav','DOT_Left_Nav','DCSext.o_nac','1');\" href='" + NAV_NODES[x][y][1] + "' class='nav_subsection'>" + NAV_NODES[x][y][0] + "</a><br>");
                        drawnSub = true;
                    } else{
                        document.write("<a onMouseDown=\"dcsMultiTrack('DCSext.o_ld','"+escape(NAV_NODES[x][0])+"-"+escape(NAV_NODES[x][y][0])+"','DCSext.o_nav','DOT_Left_Nav','DCSext.o_nac','1');\" href='" + NAV_NODES[x][y][1] + "' class='nav_subsection'>" + NAV_NODES[x][y][0] + "</a><br>");
                        drawnSub = true;
                    }
                }
            }

            if (drawnSub == true) {
                document.write("</td></tr></table></td></tr><tr><td width='175' bgcolor='FFFFFF'><img src='../../includes/site_images/spacers/spacer.gif' width='175' height='17'></td><td><img src='../../includes/site_images/spacers/spacer.gif' width='5' height='17'></td></tr>");
                drawnSub = false;
            }
        }
    }

    document.write("</table>");

}

// The following DW JS is used for imageover effects

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_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) { //v4.0
  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 && document.getElementById) x=document.getElementById(n); return x;
}

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];}
}