text: function verticalRoll(pnode) {
  	function rollUpSin() {
  		var timer=window.setInterval(function () {
  			var nowTop=parseInt(pnode.css('top'))
  			nowTop--
  			pnode.css('top',nowTop+'px')
  			if (nowTop%$singleHeight==0) {
  				clearInterval(timer)
  			}
  		},10)
  	}
  	var $mobilebanner=$('#mobilebanner')
  	imagesmove($mobilebanner)
  	var $singleHeight=parseInt(pnode.parent().height())
  	var $childrenCount=pnode.children().length-1
  	window.setInterval(function () {
  		var nowTop=parseInt(pnode.css('top'))
  		nowTop--
  		pnode.css('top',nowTop+'px')
  		rollUpSin()	
  		if (nowTop<=-$singleHeight*$childrenCount) {
  			pnode.css('top','0px')
  		}
  	},2500)
  }
  