// verifies that the specified textfield is not blank
function textBlank(formfield)
{
	var fieldLen = formfield.value.length;
	var fieldValue = formfield.value;
	var hits = 0;
	for(i=0; i<fieldLen; i++)
	{
		if(fieldValue.substr(i,1) != ' ')
		{
			hits ++;
		}
	}
	if(hits == 0)
	{
		return true;
	}
	return false;
}

// verifies that a radio button has been checked
function radioBlank(formfield)
{
	var fieldValue = radioValue(formfield);
	if (fieldValue > 0)
	{
		return false;
	}
	else
	{
		return true;
	}
}	

// verifies that a checkbox has been selected
function checkboxBlank(formfield)
{
	var fieldValue = checkboxValue(formfield);
	if(fieldValue != 0)
	{
		return false;
	}
	else
	{
		return true;
	}
}