function clearOnInitialFocus ( fieldName )
{
    var clearedOnce = false;
    document.getElementById( fieldName ).onfocus = (function () {
if (clearedOnce == false) {
this.value = '';
clearedOnce = true;

}

})

}

function clearText(field) {
    if (field.defaultValue == field.value) field.value = '';    
}