// JScript File

function formValue(formElement, defaultText)
{
	if (document.getElementById(formElement).value == defaultText)
		document.getElementById(formElement).value='';
}

function swapImage(imgUrl, altTag)
{
    var imgElem = document.getElementById("main-image");
    if (imgElem != null)
    {
        imgElem.src = imgUrl;
        imgElem.alt = altTag; 
    }
}