function viewLayer(id, formid, nurl, divtype, alpha)
{
	if(!id) id = "Login";
	if(!divtype) divtype = true;
	if(!alpha) alpha = true;

	if(alpha == true) {
		if(!top.document.getElementById('alphaDiv')){
			createLayer();
		}else{
			top.document.getElementById('alphaDiv').style.width = '100%';

			if(top.document.body.clientHeight > top.document.body.scrollHeight) top.document.getElementById('alphaDiv').style.height = '100%';
			else top.document.getElementById('alphaDiv').style.height = top.document.body.scrollHeight;
			top.document.getElementById('alphaDiv').style.display = 'block';
		}
	}

	var w = parseInt(top.document.getElementById(id).style.width);
	var h = parseInt(top.document.getElementById(id).style.height);
	var window_left = (top.document.body.clientWidth-w)/2;
	var window_top = (top.document.body.clientHeight-h)/2;
	this.Lw = h/2;

	if(id) {
		this.Lid = id;
		top.document.getElementById(id).style.display = '';
		top.document.getElementById(id).style.top = window_top;
		top.document.getElementById(id).style.left = window_left;
	}

    document.lay_login_form.mb_id.focus(); 
}

function cancelLayer(id){
	if(top.document.getElementById('alphaDiv')) top.document.getElementById('alphaDiv').style.display = 'none';
	if(id) top.document.getElementById(id).style.display = 'none';
}

function createLayer(){

	var color = '#525252';
	var opacity = '50';

	var Alpha = top.document.createElement('div');
	Alpha.style.position = 'absolute';
	Alpha.style.top = '0px';
	Alpha.style.left = '0px';
	Alpha.style.width = '100%';
	Alpha.style.zIndex = 1;
	if(top.document.body.offsetHeight > top.document.body.scrollHeight) Alpha.style.height = '100%';
	else Alpha.style.height = top.document.body.scrollHeight;
	Alpha.style.backgroundColor = color;
	Alpha.style.filter = 'alpha(opacity='+opacity+')';
    Alpha.style.opacity = (opacity / 100);
    Alpha.style.MozOpacity = (opacity / 100);
    Alpha.style.KhtmlOpacity = (opacity / 100);
	Alpha.id = 'alphaDiv';
	top.document.body.appendChild(Alpha);
}