//重写alert
window.alert = function(msg, callback){
	parent.layer.alert(msg, function(index){
		parent.layer.close(index);
		if(typeof(callback) === "function"){
			callback("ok");
		}
	});
};

//重写confirm式样框
window.confirm = function(msg, callback){
	parent.layer.confirm(msg, {btn: ['确定','取消']},
	function(){//确定事件
		if(typeof(callback) === "function"){
			callback("ok");
		}
	});
};

//选择一条记录
function getSelectedRow() {
    var grid = $("#jqGrid");
    var rowKey = grid.getGridParam("selrow");
    if(!rowKey){
    	alert("请选择一条记录");
    	return ;
    }
    
    var selectedIDs = grid.getGridParam("selarrrow");
    if(selectedIDs.length > 1){
    	alert("只能选择一条记录");
    	return ;
    }
    
    return selectedIDs[0];
}

//选择多条记录
function getSelectedRows() {
    var grid = $("#jqGrid");
    var rowKey = grid.getGridParam("selrow");
    if(!rowKey){
    	alert("请选择一条记录");
    	return ;
    }
    return grid.getGridParam("selarrrow");
}