function getElementPosition(elemID) {
    var offsetTrail = document.getElementById(elemID);
    var offsetLeft = 0;
    var offsetTop = 0;
    while (offsetTrail) {
        offsetLeft += offsetTrail.offsetLeft;
        offsetTop += offsetTrail.offsetTop;
        offsetTrail = offsetTrail.offsetParent;
    }
    if (navigator.userAgent.indexOf("Mac") != -1 &&
        typeof document.body.leftMargin != "undefined") {
        offsetLeft += document.body.leftMargin;
        offsetTop += document.body.topMargin;
    }
    return {left:offsetLeft, top:offsetTop};
}

function m_overPar(idha) {	
	par=document.getElementById(idha);
	chi=document.getElementById('ch'+idha);
	chi.style.display="none";
	chi.style.left=getElementPosition(idha).left;
	chi.style.top=getElementPosition(idha).top+par.offsetHeight;
	
	chi.style.display="block";	
}

function m_outPar(idha) {
	par=document.getElementById(idha);
	chi=document.getElementById('ch'+idha);
	chi.style.display="none";
}

function m_overChi(idha) {
	par=document.getElementById(idha);
	chi=document.getElementById('ch'+idha);
	chi.style.display="block";
	
}


function m_outChi(idha) {
	par=document.getElementById(idha);
	chi=document.getElementById('ch'+idha);	
	
	chi.style.display="none";	
}