//手机触屏滑动事件
var startX=0,startY=0,endX=0,endY=0,touchmov=0,moveFX="",touchid="";
function touchStart(event){
	//event.preventDefault();
	if (!event.touches.length) return;
	var touch = event.touches[0]; touchmov=0;
	startX = touch.pageX;
	startY = touch.pageY;
}
function touchMove(event) {
	event.preventDefault();if (!event.touches.length) return;
	var touch = event.touches[0];
	endX = touch.pageX; endY=touch.pageY;
	touchmov=1;
}
function touchEnd(event) {
	var x = endX-startX,y=endY-startY;
	if(x<0){moveFX="左";x=-x;}else{moveFX="右";}
	if(y<0){y=-y;if(y>x){moveFX="上";}}else{if(y>x)moveFX="下";}
}
function touchCancel(event){
	touchmov=0;touchid="";startX=0;startY=0;endX=0;endY=0;
}
function touch(){//给所有class=touch的对象添加触摸事件
	if(!ismobile())return;
	var tch=document.getElementsByName("touch");
	for(i=0;i<tch.length;i++){
		tch[i].addEventListener("touchstart", touchStart,true);
		tch[i].addEventListener("touchmove", touchMove,true);
		tch[i].addEventListener("touchend", touchEnd,true);
		tch[i].addEventListener("touchcancel", touchCancel, true);   
	}
}

//手机摇动事件
var yaodong_flag=false; //用时只要一直检测这个yaodong_flag值为真就是摇了,比如setInterval("if(yaodong_flag)alert('摇了');",200);
if(window.DeviceMotionEvent) { 
    var speed = 3;//定义一个数值 
    var yaodong_x = yaodong_y = yaodong_z = yaodong_lastX = yaodong_lastY = yaodong_lastZ = 0;//重置所有数值 
    window.addEventListener('devicemotion', function(){ 
        var acceleration =event.accelerationIncludingGravity;//将传感值赋给acceleration 
        yaodong_x = acceleration.x; 
        yaodong_y = acceleration.y; 
        yaodong_z = acceleration.z; 
        if(Math.abs(yaodong_x-yaodong_lastX) > speed || Math.abs(yaodong_y-yaodong_lastY) > speed ) { 
        	yaodong_flag=true;
    	}else{ yaodong_flag=false; }
        yaodong_lastX = yaodong_x; 
        yaodong_lastY = yaodong_y; 
        yaodong_lastZ = yaodong_z; 
    }, false); 
} 

function setviewport(w,z){//手机视口宽度像素（宽度，是否缩放）默认z=1可以缩放，2不可缩放。
	var bl=window.screen.width/w;//手机浏览器视口宽度与w比例
	var sf='no';if(!z && z!=0)z=1;if(z==1)sf='yes';if(w==0)w=720;//手机版面默认宽720像素
	document.write('<meta name="viewport" content="width='+w+',user-scalable='+sf+'" />');
	document.body.style.minWidth=w+'px';
	//document.body.style.WebkitTextSizeAdjust='none';
	document.write("<style>*{-webkit-text-size-adjust: none;}</style>");//拒绝手机字体自动放大，严格按设定像素输出
}