//±±¨î¹Ï¼h
function CtrlLayer(LayerName)
{	
	if (window['m1']!=null) {
		window['m1'].style.display='none';
	}
	if (window['m2']!=null) {
		window['m2'].style.display='none';
	}
	if (window['m3']!=null) {
		window['m3'].style.display='none';
	}
	if (window['m4']!=null) {
		window['m4'].style.display='none';
	}
	if (window['m5']!=null) {
		window['m5'].style.display='none';
	}
	if (window['m6']!=null) {
		window['m6'].style.display='none';
	}
	if (window['m7']!=null) {
		window['m7'].style.display='none';
	}
	if (window['m8']!=null) {
		window['m8'].style.display='none';
	}
	window[LayerName].style.display='block';


}