Javascript随机的应用

<script>
function testa(argarray){
var temparray=new Array();
var flag=true;
var i=0;
while(flag){
 randomvalue=Math.floor(Math.random()*argarray.length);
 if(temparray.toString().indexOf(randomvalue)==-1){
   temparray[i]=randomvalue;
   i++;
  }
  if(i>=argarray.length) flag=false;
 }
 for(var j=0;j<temparray.length;j++) document.write(argarray[temparray[j]],"<br>");
}
</script>
<script>
var qct1array=new Array();
qct1array[0]="<tr><td><input name=/"qc1a/" type=/"checkbox/" id=/"qc1a/"  value=/"a/" onclick=/"qc1_selected = multicontrol(qc1_selected,this,5)/;/"/>新浪商城</td></tr>";
qct1array[1]="<tr><td><input name=/"qc1b/" type=/"checkbox/" id=/"qc1b/" onclick=/"qc1_selected = multicontrol(qc1_selected,this,5)/;/" value=/"b/"/>搜狐商城<//td></tr>";
qct1array[2]="<tr><td><input name=/"qc1c/" type=/"checkbox/" id=/"qc1c/" onclick=/"qc1_selected = multicontrol(qc1_selected,this,5)/;/" value=/"c/"/>263商城<//td></tr>";
testa(qct1array);
</script>