var _option2={playTime:'3500',animateTime:'500',width:'750',height:'286',bgHeight:'20',btnWidth:'15',btnHeight:'15',titleLeft:'4',titleTop:'4',descLeft:'4',descTop:'2',btnMargin:'4',btnTop:'4',titleSize:'14',descSize:'0',btnFontSize:'12',bgOpacity:'0.5',btnOpacity:'0.5',titleColor:'#FFF',titleFont:'Verdana,宋体',descColor:'#FFF',descFont:'Verdana,宋体',btnColor:'#FFF',btnFontColor:'#000',btnFont:'Verdana',animateStyle:'o',repeat:'no-repeat',bg:'true',title:'true',desc:'false',btn:'true',btnText:'true'};