dis_statess=new Array()
dis_statess[1]="dis_a" 
dis_statess[0]="dis_b" 



function dis_hideAllExcept(dis_elm) { 
for (var i = 0; i < dis_statess.length; i++) { 
var layer = document.getElementById(dis_statess[i]); 
if (dis_elm!= dis_statess[i]) { 
layer.style.display = "none";

} 
else{ 
layer.style.display = "block";
	} 
	}
}