限制只能输入中文

JS

window.onload = function(){
	var chineseStr = document.getElementById("chineseStr"),
			clearNonumber = function(tThis){					//过滤字符
				var _v = tThis.value;
				tThis.value = _v.replace(/[^\u4e00-\u9fa5]/g,"");	//正则替换
			}
	chineseStr.onfocus = function(){							//获取焦点事件
		clearNonumber(this);
	}

	chineseStr.onkeyup = function(){							//键盘事件
		clearNonumber(this);
	}
	chineseStr.onblur = function(){							//失去焦点事件
		clearNonumber(this);
	}
};