光标永远停留在文字最后

JS

window.onload = function(){
	var cursorPos = document.getElementById("cursorPos");//绑定两种事件，已达到最大兼容性

	cursorPos.onclick = cursorPos.onkeyup  = function(){//绑定处理事件的函数
		var _vLen = this.value.length;
		if(this.setSelectionRange){//非IE
			this.setSelectionRange(_vLen,_vLen);
		}else{//IE中
			var a =this.createTextRange();
			a.moveStart('character',_vLen);
			a.collapse(true);
			a.select();
		}
	}
};