function gmapLoadCheck() {
	if(typeof window.load == 'function') {
		// function exists, so we can now call it
		load();
	}
}
function gmapUnLoadCheck() {
	if(typeof window.GUnload == 'function') {
		// function exists, so we can now call it
		GUnload();
	}
}
if (window.attachEvent) {
	window.attachEvent("onload", gmapLoadCheck);
	window.attachEvent("onunload", gmapUnLoadCheck);
} else if (window.addEventListener) {
	window.addEventListener("load", gmapLoadCheck, false);
	window.addEventListener("unload", gmapUnLoadCheck, false);
}