if (document.images) {
  imgReg('Home');
  imgReg('Visitors');
  imgReg('Services');
  imgReg('Calendar');
  imgReg('Ministries');
  imgReg('Stewardship');
  imgReg('ContactUs');
}

//This function registers images.
function imgReg(imgName){
  eval(imgName+"down = new Image();");
  eval(imgName+"down.src = \"../Images/"+imgName+"Down.gif\";");
  eval(imgName+"up = new Image();");
  eval(imgName+"up.src = \"../Images/"+imgName+"Up.gif\";");
}

//This function changes the image when down.
function imgDown(imgName) {
  if (document.images) {
    document[imgName].src = eval(imgName + "down.src");
  }
}

//This function changes the image back when off.
function imgOut(imgName) {
  if (document.images) {
    document[imgName].src = eval(imgName + "up.src");
  }
}

function showHideSelection() 
  { 
   if (document.audioupload.performer.value == "-1") 
    { 
     if (navigator.appName=="Netscape") 
      document.layers['formdiv'].visibility = "show"; 
     else 
      document.all['formdiv'].style.visibility = "visible"; 
    } 
   else 
    { 
     if (navigator.appName=="Netscape") 
      document.layers['formdiv'].visibility = "hide"; 
     else 
      document.all['formdiv'].style.visibility = "hidden"; 
    } 
  } 

// A utility function that returns true if a string contains only 
// whitespace characters.
function isblank(s)
{
    for(var i = 0; i < s.length; i++) {
        var c = s.charAt(i);
        if ((c != ' ') && (c != '\n') && (c != '\t')) return false;
    }
    return true;
}

// This is the function that performs form verification. It will be invoked
// from the onSubmit() event handler. The handler should return whatever
// value this function returns.
function verify(f)
{
    var msg;
    var empty_fields = "";
    var errors = "";

    // Loop through the elements of the form, looking for all 
    // text and textarea elements that don't have an "optional" property
    // defined. Then, check for fields that are empty and make a list of them.
    // Also, if any of these elements have a "min" or a "max" property defined,
    // then verify that they are numbers and that they are in the right range.
    // Put together error messages for fields that are wrong.
    for(var i = 0; i < f.length; i++) {
        var e = f.elements[i];
        if (((e.type == "text") || (e.type == "textarea") || (e.type == "file")) && !e.optional) {
            // first check if the field is empty
            if ((e.value == null) || (e.value == "") || isblank(e.value)) {
                empty_fields += "\n          " + e.name;
                continue;
            }

            // Now check for fields that are supposed to be numeric.
            if (e.numeric || (e.min != null) || (e.max != null)) { 
                var v = parseFloat(e.value);
                if (isNaN(v) || 
                    ((e.min != null) && (v < e.min)) || 
                    ((e.max != null) && (v > e.max))) {
                    errors += "- The field " + e.name + " must be a number";
                    if (e.min != null) 
                        errors += " that is greater than " + e.min;
                    if (e.max != null && e.min != null) 
                        errors += " and less than " + e.max;
                    else if (e.max != null)
                        errors += " that is less than " + e.max;
                    errors += ".\n";
                }
            }
            
            if (e.accept = "Real Audio/rm" && e.type == "file" && 
               (e.value == "" || (e.value.indexOf(".rm")<=0)) ){
              errors += "File must have an '.rm' extension.\n";
            }
        }
    }

    // Now, if there were any errors, display the messages, and
    // return false to prevent the form from being submitted. 
    // Otherwise return true.
    if (!empty_fields && !errors) return true;

    msg  = "______________________________________________________\n\n"
    msg += "The form was not submitted because of the following error(s).\n";
    msg += "Please correct these error(s) and re-submit.\n";
    msg += "______________________________________________________\n\n"

    if (empty_fields) {
        msg += "- The following required field(s) are empty:" 
                + empty_fields + "\n";
        if (errors) msg += "\n";
    }
    msg += errors;
    alert(msg);
    return false;
}

function confirmDelete(Title)
{
var msg = "Are you sure you wish to delete\""+Title+"\"?\n\n";
msg += "The entry will be removed from the database\n";
msg += "and the file will be removed from the server.";
var agree=confirm(msg);
if (agree)
	return true ;
else
	return false ;
}