$('img').on("contextmenu",function(E){E.preventDefault();E.stopPropagation();E.returnValue=false; return false;})

 $('img').on("touchstart",function(E){E.preventDefault();E.stopPropagation();});

var tapTimer=null;$('img').on("touchstart",function(E){E.preventDefault();E.stopPropagation();var el=this;var me=$(this);$("#tip").text("in touchstart");var t=E.touches[0];tapTimer=setTimeout(function(){me.trigger('touchend').trigger('longTap');},1500);me.data("mx",t.pageX);me.data("my",t.pageY);me.data("ex",el.offsetLeft);me.data("ey",el.offsetTop);}).on('touchmove',function(E){E.preventDefault();E.stopPropagation();if(tapTimer!=null)clearTimeout(tapTimer);var t=E.touches[0];var mx=parseInt(me.data("mx")),my=parseInt(me.data("my"));var ex=parseInt(me.data("ex")),ey=parseInt(me.data("ey"));var nx=ex+t.pageX - mx , ny=ey+t.pageY-my$("#tip").text("in touch move : "+"or mx,my, new mx,my or ex,ey="+mx+","+my+","+t.pageX+","+t.pageY+","+ex+","+ey+" dest x,y="+nx+","+ny);me.css({"left":nx+"px","top":ny+"px"}) ;}).on('touchend',function(E){if(tapTimer!=null)clearTimeout(tapTimer);//E.preventDefault();E.stopPropagation();          });$('img').on("contextmenu",function(E){E.preventDefault();E.stopPropagation();E.returnValue=false; return false;}).on('longTap',function(E){E.stopPropagation();E.preventDefault()$.ui.actionsheet([{text: 'back',cssClasses: 'red',handler: function () {alert("Clicked Back")}}, {text: 'Alert Hi',cssClasses: 'blue',handler: function () {alert("Hi");}}, {text: 'Alert Goodbye',cssClasses: '',handler: function () {alert("Goodbye");}}]);});