// ancestor.js
// Global helpful routines used throughout the site
//

var menuStatus = new Object();

function defaultMenu()
{
    var this_image = document.getElementById(category);

    switch (category) {
        case 'about':
            this_image.src = 'images/top-menu-bar-highlight-0-0.png';
            break;
        case 'community':
            this_image.src = 'images/top-menu-bar-highlight-0-1.png';
            break;
        case 'news':
            this_image.src = 'images/top-menu-bar-highlight-0-2.png';
            break;
        case 'properties':
            this_image.src = 'images/top-menu-bar-highlight-0-3.png';
            break;
        case 'links': 
            this_image.src = 'images/top-menu-bar-highlight-0-4.png';
            break;
    } 
}

function chooseMenu(item) 
{
    for ( var i in menuStatus ) {
        if ( menuStatus[i] == 'selected' )
            menuStatus[i] = 'notselected';
    }

    var about = document.getElementById('about');
    var community = document.getElementById('community');
    var news = document.getElementById('news');
    var properties = document.getElementById('properties');
    var links = document.getElementById('links');

    about.src = 'images/top-menu-bar-0-0.png';
    community.src = 'images/top-menu-bar-0-1.png';
    news.src = 'images/top-menu-bar-0-2.png';
    properties.src = 'images/top-menu-bar-0-3.png';
    links.src = 'images/top-menu-bar-0-4.png';

    menuStatus[item] = 'selected';

    return true;
}

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

    return true;
}

/*
 * Image swapping routines
 */
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_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];}
}

/*
 * Mozilla-IE compatible function to use the browser-powered bookmark function
 */
function bookmark_site( title, url ) {
    if (document.all)
        window.external.AddFavorite( url, title );
    else if (window.sidebar)
        window.sidebar.addPanel( title, url, "" )

    return true;
}

/*
 * Ensure that at least a valid-looking proposal code has 
 * been entered before forwarding the user to the 
 * actual proposal.
 */
function validate_proposal_code()
{
    var input = document.getElementById('proposal_code'); 

    if ( input.value == 0 || input.value == 'enter proposal code here' ) {
        alert("Please enter a client code");
        input.focus();
        return false;
    } else {
        document.getElementById('proposalForm').submit();
        return true;
    }        
}