jquery实现简单的拖拽效果实例兼容所有主流浏览器_jquery

jQuery.fn.myDrag=function(){
_IsMove = 0;
_MouseLeft = 0;
_MouseTop = 0;
return $(this).bind("mousemove",function(e){
if(_IsMove==1){
$(this).offset({top:e.pageY-_MouseLeft,left:e.pageX-_MouseTop});
}
}).bind("mousedown",function(e){
_IsMove=1;
var offset =$(this).offset();
_MouseLeft = e.pageX - offset.left;
_MouseTop = e.pageY - offset.top;
}).bind("mouseup",function(){
_IsMove=0;
}).bind("mouseout",function(){
_IsMove=0;
});
}