var browzr = navigator.appName;

function show_disp(me){
	document.getElementById(me).style.display = "";
}

function hide_disp(me){
	document.getElementById(me).style.display = "none";
}

function opac_high(me){
	if (browzr == "Microsoft Internet Explorer") {
	document.getElementById(me).filters.alpha.opacity="100"
	} else {
	document.getElementById(me).style.opacity="1"
	}
	if (me == 'Upstatepic' ) show_disp('topcenter')
	if (me == 'wwofpic' ) show_disp('wwofcenter')
	if (me == 'iflycnypic' ) show_disp('iflycnycenter')
	if (me == 'airnavpic' ) show_disp('airnavcenter')
	if (me == 'iflypic' ) 
		{
			hide_disp('EAAdiv')
			show_disp('iflycenter');
		}	
	if (me == 'studentpic' )
		{
			hide_disp('99div')
			show_disp('studentflydiv');
		}
}

function opac_low(me){
	if (browzr == "Microsoft Internet Explorer") {
	document.getElementById(me).filters.alpha.opacity="75"
	} else {
	document.getElementById(me).style.opacity="0.75"
	}
	if (me == 'studentpic' ) hide_disp('studentflydiv')
	if (me == 'Upstatepic' ) hide_disp('topcenter')
	if (me == 'wwofpic' ) hide_disp('wwofcenter')
	if (me == 'iflypic' ) hide_disp('iflycenter')
	if (me == 'airnavpic' ) hide_disp('airnavcenter')
	if (me == 'iflycnypic' ) hide_disp('iflycnycenter');
}

function disp_alert(me)
{
alert("This tool is for flight planning purposes only." + '\n\n' + "This tool does not preclude you from using the POH." + '\n' + "Always refer to the aircraft's POH for the correct data.");
if (me == 'wb_35M')
	{
	window.open("weight_and_balance/35MC_WB.xls");
	}
else
	{
	window.open("weight_and_balance/N8198V_WB.xls");
	}
}

function chg_class(me,class_name)
{
document.getElementById(me).className = class_name;
}