function GetRequestStringParamValue(pageQueryString, paramName)
{
    var keyValuePairs = new Array();
    keyValuePairs = pageQueryString.split('&');
    for(var i=0; i<keyValuePairs.length; i++)
    {
        var keyValueArray = new Array();
        keyValueArray = keyValuePairs[i].split('=');
        if(keyValueArray.length=2)
        {
            if(keyValueArray[0].toString().toLowerCase() == paramName.toString().toLowerCase())
            {
                return keyValueArray[1].toString();
            }
        }
    }
    return "";    
}
function VisibleElement(id)
{
    var element = document.getElementById(id);
    element.style.visibility = 'visible';
}
function InvisibleElement(id)
{
    var element = document.getElementById(id);
    element.style.visibility = 'hidden';
}
function ShowElement(id)
{
    var element = document.getElementById(id);
    element.style.display = '';
}
function HideElement(id)
{
    var element = document.getElementById(id);
    element.style.display = 'none';
}
function SetLabelMessage(lbElementId, message)
{
    var lbElement = $get(lbElementId);
    if(document.all)
        lbElement.innerText = message;
    else
        lbElement.textContent = message;
}
function GetTextBoxValue(txtBoxId)
{
    var txtBoxObj = $get(txtBoxId);
    return txtBoxObj.value;
}
function SetTextBoxValue(txtBoxId, txtBoxValue)
{
    var txtBoxObj = $get(txtBoxId);
    txtBoxObj.value = txtBoxValue;
}