function MarkCheckbox(dname) {
	v = document.getElementById(dname).value;
	if (v=='0') {
		document.getElementById(dname).value = 1;
		document.getElementById('cb'+dname).className = 'chbon';
	}
	else {
		document.getElementById(dname).value = 0;
		document.getElementById('cb'+dname).className = 'chb';
	}
}

function ShowLogin() {
	document.getElementById('loingtxt').style.display = 'none';
	document.getElementById('lbut').style.display = 'none';
	document.getElementById('loingfrm').style.display = 'block';
}

function hover(obj) {
	UL = obj.getElementsByTagName('ul');
    if (UL.length > 0) {
		stubMenu = UL[0].style;
		if (stubMenu.display == 'none' || stubMenu.display == '') stubMenu.display = 'block';
		else stubMenu.display = 'none';
	}
}

function setHover() {
	obj = document.getElementById('nav');
	if (!obj) return ;
	LI = document.getElementById('nav').getElementsByTagName('li');
	for(i=0; i < LI.length; i++) {
		LI[i].onmouseover = function() { hover(this) };
		LI[i].onmouseout = function() { hover(this); }
	}
}

function ScrollToElement(el) {
	if (!document.getElementById(el)) return ;
	if (document.all) y = document.getElementById(el).offsetParent.offsetTop;
	else y = document.getElementById(el).offsetTop;
	window.scrollTo(0, y);
}