function checkMajors()
{
	document.mainform.m_ab.checked = true ;
	document.mainform.m_bc.checked = true ;
	document.mainform.m_be.checked = true ;
	document.mainform.m_ce.checked = true ;
	document.mainform.m_che.checked = true ;
	document.mainform.m_chem.checked = true ;
	document.mainform.m_cpe.checked = true ;
	document.mainform.m_cs.checked = true ;
	document.mainform.m_econ.checked = true ;
	document.mainform.m_ee.checked = true ;
	document.mainform.m_emgt.checked = true ;
	document.mainform.m_ep.checked = true ;
	document.mainform.m_eve.checked = true ;
	document.mainform.m_ma.checked = true ;
	document.mainform.m_me.checked = true ;
	document.mainform.m_oe.checked = true ;
	document.mainform.m_ph.checked = true ;
	document.mainform.m_se.checked = true ;
	document.mainform.p_ft.checked = true ;
	document.mainform.p_si.checked = true ;
	document.mainform.p_co.checked = true ;
	document.mainform.p_gp.checked = true ;
}

function uncheckMajors()
{
	document.mainform.m_ab.checked = false ;
	document.mainform.m_bc.checked = false ;
	document.mainform.m_be.checked = false ;
	document.mainform.m_ce.checked = false ;
	document.mainform.m_che.checked = false ;
	document.mainform.m_chem.checked = false ;
	document.mainform.m_cpe.checked = false ;
	document.mainform.m_cs.checked = false ;
	document.mainform.m_econ.checked = false ;
	document.mainform.m_ee.checked = false ;
	document.mainform.m_emgt.checked = false ;
	document.mainform.m_ep.checked = false ;
	document.mainform.m_eve.checked = false ;
	document.mainform.m_ma.checked = false ;
	document.mainform.m_me.checked = false ;
	document.mainform.m_oe.checked = false ;
	document.mainform.m_ph.checked = false ;
	document.mainform.m_se.checked = false ;
	document.mainform.p_ft.checked = false ;
	document.mainform.p_si.checked = false ;
	document.mainform.p_co.checked = false ;
	document.mainform.p_gp.checked = false ;
}

function hideMajorKey()
{
	document.getElementById("majorKey").style.display = "none";
	document.getElementById("hideMajorKey").style.display = "none";
	document.getElementById("showMajorKey").style.display = "";
}

function showMajorKey()
{
	document.getElementById("majorKey").style.display = "";
	document.getElementById("hideMajorKey").style.display = "";
	document.getElementById("showMajorKey").style.display = "none";
}

function checkAll(field)
{
for (i = 0; i < field.length; i++)
	field[i].checked = true ;
}

function uncheckAll(field)
{
for (i = 0; i < field.length; i++)
	field[i].checked = false ;
}