var message="欢 迎 光 临 小 德 兰 爱 心 书 屋 !!!";
        var x,y;
        var step=12;
        var flag=0;
        message=message.split("");
        var xpos=new Array();
        for (i=0;i<=message.length-1;i++) {
                xpos[i]=-50;
        }
        var ypos=new Array();
        for (i=0;i<=message.length-1;i++) {
                ypos[i]=-50;
        }
        function handlerMM(e) {
                x = (document.layers) ? e.pageX : document.body.scrollLeft+event.clientX+10;
                y = (document.layers) ? e.pageY : document.body.scrollTop+event.clientY;
                flag=1;
        }
        function makesnake() {
                if (flag==1 && document.all) {
                            for (i=message.length-1; i>=1; i--) {
                                   xpos[i]=xpos[i-1]+step;
                                ypos[i]=ypos[i-1];
                            }
                        xpos[0]=x+step;
                        ypos[0]=y;
                        for (i=0; i<=message.length-1; i++) {
                                    var thisspan = eval("span"+(i)+".style");
                                    thisspan.posLeft=xpos[i];
                                thisspan.posTop=ypos[i];
                                thisspan.color=Math.random() * 255 * 255 * 255 + Math.random() * 255 * 255 + Math.random() * 255;
                            }
                }
                else if (flag==1 && document.layers) {
                            for (i=message.length-1; i>=1; i--) {
                                   xpos[i]=xpos[i-1]+step;
                                ypos[i]=ypos[i-1];
                            }
                        xpos[0]=x+step;
                        ypos[0]=y;
                        for (i=0; i<message.length-1; i++) {
                                    var thisspan = eval("document.span"+i);
                                    thisspan.left=xpos[i];
                                thisspan.top=ypos[i];
                                thisspan.color=Math.random() * 255 * 255 * 255 + Math.random() * 255 * 255 + Math.random() * 255;
                        }
                }
        }

        for (i=0;i<=message.length-1;i++) {
                    document.write("<span id='span"+i+"' class='spanstyle'>");
                document.write(message[i]);
                    document.write("</span>");
        }
        if (document.layers) {
                document.captureEvents(Event.MOUSEMOVE);
        }
        document.onmousemove = handlerMM;

        function pageonload() {
                makesnake();
                window.setTimeout("pageonload();", 2);
        }