//Random ³ëÃâ
	function getNan(vm,vl){ //vm±îÁö vl°³ÀÇ ³­¼ö¸¦ ±¸ÇÏ´Â ÇÔ¼ö
 		var a = new Array(vm);
 		var b = new Array();

 		for(i=1; i<=vm; i++){
  			a[i]=Math.random()+'-'+i; //³­¼ö¿Í idx¸¦ °ªÀ¸·Î °¡Áö´Â ¹è¿­
 		}
 		a = a.sort(); //¹è¿­À» ¼ÒÆ®ÇÑ´Ù.

 		for(i=0; i<vl; i++){ //vl¹ø ¹Ýº¹
  			tmp = a[i].split("-");
  			//b[i] = (tmp[1]<10)?'0'+tmp[1]:tmp[1]; //idx¸¸ Ã߸°ÈÄ
  			b[i] = tmp[1]; //idx¸¸ Ã߸°ÈÄ
 		}
 		b = b.sort(); //¼ÒÆ®
 		return b; //¹Ýȯ
	}