<script language="javascript">
var src="张三,李四,王五,赵六,钱七,孙八,曾久"
var srcArray=src.split(",")
var beginDate=new Date(2012,7,7)
var nowdate=new Date()
var diff=Math.floor((nowdate-beginDate)/(86400000*7))
diff=diff%srcArray.length
var nextDiff=(diff+parseInt(1))%srcArray.length
var nowWeek=srcArray[diff]
var nextWeek=srcArray[nextDiff]
alert("本周值班："+nowWeek+";下周值班："+nextWeek)
</script>
//javascript/1963