// ·£´ý³ëÃâ Div°ü·Ã ÇÔ¼ö
			function randomShowDiv(divID) {
				this.divID = divID;
				this.divOrderArray = new Array();
				this.showDivNum = 0;
				this.isRandom = false;
				this.tid = null;
				this.interval = 8000;
				this.isTab = false;
			}

			randomShowDiv.prototype.init = function () {
					var self = this;
					var motherDiv = document.getElementById(self.divID);
					var cont = motherDiv.childNodes;
					
					for (var i=0; i<cont.length; i++) {
						if(cont[i].className == "randomShowDiv") {
							cont[i].style.display = "none";
							self.divOrderArray.push(cont[i].id);
						}
					}

					if(self.isRandom) self.showDivNum = parseInt(Math.random()*100)%self.divOrderArray.length;		
					self.showDiv(self.showDivNum);

			}


			randomShowDiv.prototype.stopRolling = function () {
					var self = this;
					if(self.tid != null) clearInterval(self.tid);
			}

			randomShowDiv.prototype.startRolling = function (objID) {
					var self = this;
					if(self.tid != null) clearInterval(self.tid);
					functionStr = objID+".showNextDiv();";
					self.tid = setInterval(functionStr,self.interval); // ÀÚµ¿·Ñ¸µ..

			}


			randomShowDiv.prototype.showDiv = function (n) {
					var self = this;
					self.showDivNum = n;
					for(i=0;i<self.divOrderArray.length;i++){
						
						tmpObj = document.getElementById(self.divOrderArray[i]);
						if(i==n) tmpObj.style.display = "block";
						else tmpObj.style.display = "none";		
					}

					if(self.isTab){
						RandomOnTab(n);
					}
			}

			randomShowDiv.prototype.showNextDiv = function () {
					var self = this;
					self.showDivNum++;
					if(self.showDivNum >= self.divOrderArray.length) self.showDivNum = 0;
					self.showDiv(self.showDivNum);
			}

			randomShowDiv.prototype.showPrevDiv = function () {
					var self = this;
					self.showDivNum--;
					if(self.showDivNum < 0) self.showDivNum = self.divOrderArray.length-1;
					self.showDiv(self.showDivNum);
			}
			

		function setPng24(obj) { 
			var request_os = window.navigator.userAgent; 
			var os_array = request_os.split(";"); 

			if(os_array[1] != " MSIE 7.0") { 
			obj.width=obj.height=1; 
			obj.className=obj.className.replace(/png24/i,''); 
			obj.style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='"+ obj.src +"',sizingMethod='image');"; 
			obj.src=''; 
			} 

			return ''; 
		}