function chkEmail(addr)
{
	var filter = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	return filter.test(addr);
}

function IsNumeric(num)
{
	var filter = /[^0-9]/;
	return !filter.test(num);
	
}
function isblank(s)
{
	for(var i=0; i < s.length; i++)
	{
		var c = s.charAt(i);
		
		if((c != ' ') && (c != '\n') && (c != '\t'))
			return false;
	}
	return true;
}
function popMsgWindow(picurl)
{
	var newwindow=window.open(picurl,'','width=250,height=120');
	
}
function subscribeBox1()
{
	emailwindow1=window.open("","emailwindow1","toolbar=0,scrollbars=yes,location=0,status=0,menubars=0,resizable=1,width=620,height=400,top=0,left=0,maximize=null");
}
function popupWindow(myfile,width,height)
{
	window.open(myfile,"emailwindow2","toolbar=0,scrollbars=yes,location=0,status=0,menubars=0,resizable=1,width="+width+",height="+height+",top=0,left=0,maximize=null");
}