// JavaScript Document
var httpReadyStates = new Object();
httpReadyStates.UNINITIALIZED = 0;
httpReadyStates.LOADING       = 1;
httpReadyStates.LOADED        = 2;
httpReadyStates.INTERACTIVE   = 3;
httpReadyStates.COMPLETE      = 4;
function getHTTPObject() {
    var http_object;
    // MSIE Proprietary method
    /*@cc_on
    @if (@_jscript_version >= 5)
        try {
            http_object = new ActiveXObject("Msxml2.XMLHTTP");
        }
        catch (e) {
            try {
                http_object = new ActiveXObject("Microsoft.XMLHTTP");
            }
            catch (E) {
                http_object = false;
            }
        }
    @else
        xmlhttp = http_object;
    @end @*/
    // Mozilla and others method
    if (!http_object && typeof XMLHttpRequest != 'undefined') {
        try {
            http_object = new XMLHttpRequest();
        }
        catch (e) {
            http_object = false;
        }
    }
    return http_object;
}
function replaceHTML(idName, content) {
    var target = document.getElementById(idName);    
    target.innerHTML = content; 
}
var blankRe = /^\W*$/i;

function isBlank(val)
{
    if (val.search(blankRe) != -1)
    {   
        return true;
    }
    return false;
}
var emailRe = /^.+@.+\..+/i;

function isEmailAddress(val)
{
    if (val.search(emailRe) != -1)
    {   
        return true;
    }
    return false;
}
function clearField(field, text)
{
		if (field.value == text)
		{
				field.value = '';
		}
}

function populateField(field, text)
{
		if (isBlank(field.value))
		{
				field.value = text;
		}
}
function hideEmailForm(emailFormName)
{
	var emailForm = document.getElementById(emailFormName);
	emailForm.innerHTML = '';
}