function gMapWindow() {
	var id, user_id;
	var screenH = screen.availHeight;
	var screenW = window.screen.availWidth;
	h=screenH-100;
	var sz = (screenW - 700)/2;
	var lsz = 'left='+sz;
	var m = (screenH - h)/2;
	var tm = 'top='+m;
opti='toolbar=0,location=0,directories=0,status=0,menubar=0,resizable=yes,scrollbars=yes,'+lsz+','+tm+',width=630,height=590';
wd=window.open('gmap.html','gMapWindow',opti);
}

function showDiv(divId) {
var divId;
var divStyle = document.getElementById(divId);
if (divStyle.style.display =="block") {
divStyle.style.display="none";
} else {
divStyle.style.display="block";
}
}