var scrollerheight=80;		// 滚动条数 N*40 
				var html,wait_flag=true;
				
				var bMouseOver = 1;
				var scrollspeed = 1;		// Scrolling 速度        
				var waitingtime = 3100;		// 停顿时间
				var s_tmp = 0, s_amount = 20; //行距
				
				function startscroll()
				{ // 胶农费 矫累

					insert_area(0);
					insert_area(1);

					window.setTimeout("scrolling()",waitingtime);
				}

				function scrolling(){ 
					if (bMouseOver && wait_flag)
					{
						for (i=0;i<2;i++){
							tmp = document.getElementById('scroll_area'+i).style;
							tmp.top = parseInt(tmp.top)-scrollspeed;
							if (parseInt(tmp.top) <= -scrollerheight){
								tmp.top = scrollerheight;
							}
							if (s_tmp++ > (s_amount-1)*2){
								wait_flag=false;
								window.setTimeout("wait_flag=true;s_tmp=0;",waitingtime);
							}
						}
					}
					window.setTimeout("scrolling()",1);
				}
				function insert_area(n){ // area 火涝
					html='<div style="left: 0px; width: 400px; position: absolute; top: '+(scrollerheight*n)+'px" id="scroll_area'+n+'">\n';
					html+=scroll_content+'\n';
					html+='</div>\n';
					document.write(html);
				}
				scroll_content = document.getElementById('weather_data').value;