1     function toTreeData(data){ 2         var pos={}; 3         var tree=[]; 4         var i=0; 5         while(data.length!=0){ 6             if(data[i].parentid==0){ 7                 tree.push({ 8                     resid:data[i].resid, 9                     caption:data[i].caption,10                     href:data[i].href,11                     children:[]12                 });13                 pos[data[i].resid]=[tree.length-1];    14                 data.splice(i,1);15                 i--;16             }else{17                 var posArr=pos[data[i].parentid];18                 if(posArr!=undefined){19                     20                     var obj=tree[posArr[0]];21                     for(var j=1;j<posArr.length;j++){22                         obj=obj.children[posArr[j]];23                     }24 25                     obj.children.push({26                         resid:data[i].resid,27                         caption:data[i].caption,28                         href:data[i].href,29                         children:[]30                     });31                     pos[data[i].resid]=posArr.concat([obj.children.length-1]);32                     data.splice(i,1);33                     i--;34                 }35             }36             i++;37             if(i>data.length-1){38                 i=0;39             }40         }41         return tree;42     }