function travarTela()
{
	var navegador	= navigator.appName;
	if (navegador.indexOf("Microsoft")==0)
	{
		var width	= document.body.clientWidth;
		var height	= document.body.clientHeight;
	}
	else
	{
		var width	= window.innerWidth - 17;
		var height	= window.innerHeight;
	}
	
	

	var imgLoading	= document.getElementById('divImgLoadingBox');
	imgLoading.style.width=width+'px';
	imgLoading.style.height=height+'px';
	
	var strDivId	= 'divImgLoadingBox';
	exibirDiv(strDivId);
}

function destravarTela()
{
	ocultarDiv('divImgLoadingBox');
}


function exibirLoginBox()
{
	var strDivId	= 'divLoadingBox';
	var objDiv		= document.getElementById(strDivId);
	objDiv.style.left	= "50%";
	objDiv.style.top	= "50%";
	objDiv.style.marginLeft	= "-120px";
	objDiv.style.marginTop	= "-50px";

	travarTela();
	
	exibirDiv(strDivId);
}

function ocultarLoadingBox()
{
	var strDivId = 'divLoadingBox';
	ocultarDiv(strDivId);
	
	destravarTela();
}