function admin(mpage){
   document.onkeydown=function (e){
       if(!document.all){
           startLocation = e.which;
       }else{
           startLocation = event.keyCode;
       }
       if(startLocation == 113){
           window.location = mpage;
       }
   }
}

select_all_checks = function(total) {
	var obj = document.getElementById("select_all");
	
	if (obj != null) {
		for (i = 0; i < total; i++) {
			var check = document.getElementById("o" + i);
			
			if (check != null) {
				check.checked = obj.checked;
			}
		}
	}
}

mark_hidden_key = function() {
	var obj = document.getElementById("hidden_key");
	
	if (obj != null) {
		obj.value = "delete";
	}
}