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<body> var no = 15; // Anzahl der Schneeflocken var speed = 20; // "Schnee-Geschwindigkeit"; je kleiner die Zahl, um so schneller fallen die Flocken var snowflake = "snow1.gif"; // Bild der Schneeflocke, beliebig // ***** Ab hier nichts mehr ändern! ******************** var ns4up = (navigator.appName=="Netscape" && navigator.appVersion.charAt(0)=="4") ? 1 : 0; // Browser Tester var ie4up = (document.all) ? 1 : 0; var ns6up = (document.getElementById&&!document.all) ? 1 : 0; var dx, xp, yp; // Variablen für Koordinaten und Position var am, stx, sty; //Variablen für Amplitude und Schrittweite var i, doc_width = 800, doc_height = 100; if (ns4up||ns6up) { // Bildschirm-Auflösung holen, Netscape-Funktion doc_width = self.innerWidth; doc_height = self.innerHeight; } else if (ie4up) { // Bildschirm-Auflösung holen, Internet Explorer-Funktion doc_width = document.body.clientWidth; doc_height = document.body.clientHeight; } dx = new Array(); xp = new Array(); yp = new Array(); am = new Array(); stx = new Array(); sty = new Array(); for (i = 0; i < no; ++ i) { dx[i] = 0; // Koordinaten-Variable setzen xp[i] = Math.random()*(doc_width-50); // Position-Variable setzen yp[i] = Math.random()*doc_height; am[i] = Math.random()*20; // Amplituden-Variable setzten stx[i] = 0.02 + Math.random()/10; // Variable für Schrittweite setzen sty[i] = 0.7 + Math.random(); // Variable für Schrittweite setzen // ---------------------------------------------------------------------- // Layer konfigurieren für Netscape if (ns4up) { if (i == 0) { document.write("<layer name=\"dot"+ i +"\" left=\"15\" "); document.write("top=\"15\" visibility=\"show\"><img src=\""); document.write(snowflake + "\" border=\"0\"></layer>"); } else { document.write("<layer name=\"dot"+ i +"\" left=\"15\" "); document.write("top=\"15\" visibility=\"show\"><img src=\""); document.write(snowflake + "\" border=\"0\"></layer>"); } // ---------------------------------------------------------------------- // Layer konfigurieren für <> NS4 } else if (ie4up||ns6up) { if (i == 0) { document.write("<div id=\"dot"+ i +"\" style=\"POSITION: "); document.write("absolute; Z-INDEX: "+ i +"; VISIBILITY: "); document.write("visible; TOP: 15px; LEFT: 15px;\"><img src=\""); document.write(snowflake + "\" border=\"0\"></div>"); } else { document.write("<div id=\"dot"+ i +"\" style=\"POSITION: "); document.write("absolute; Z-INDEX: "+ i +"; VISIBILITY: "); document.write("visible; TOP: 15px; LEFT: 15px;\"><img src=\""); document.write(snowflake + "\" border=\"0\"></div>"); } } } // ---------------------------------------------------------------------- // Haupt-Animations-Funktion für Netscape function snowNS() { for (i = 0; i < no; ++ i) { yp[i] += sty[i]; if (yp[i] > doc_height-50) { xp[i] = Math.random()*(doc_width-am[i]-30); yp[i] = 0; stx[i] = 0.02 + Math.random()/10; sty[i] = 0.7 + Math.random(); doc_width = self.innerWidth; doc_height = self.innerHeight; } dx[i] += stx[i]; document.layers["dot"+i].top = yp[i]; document.layers["dot"+i].left = xp[i] + am[i]*Math.sin(dx[i]); } setTimeout("snowNS()", speed); } // ---------------------------------------------------------------------- // Haupt-Animations-Funktion für Internet Explorer function snowIE() { for (i = 0; i < no; ++ i) { yp[i] += sty[i]; if (yp[i] > doc_height-50) { xp[i] = Math.random()*(doc_width-am[i]-30); yp[i] = 0; stx[i] = 0.02 + Math.random()/10; sty[i] = 0.7 + Math.random(); doc_width = document.body.clientWidth; doc_height = document.body.clientHeight; } dx[i] += stx[i]; document.all["dot"+i].style.pixelTop = yp[i]; document.all["dot"+i].style.pixelLeft = xp[i] + am[i]*Math.sin(dx[i]); } setTimeout("snowIE()", speed); } // Haupt-Animations-Funktion für Netscape6 und Mozilla function snowNS6() { for (i = 0; i < no; ++ i) { yp[i] += sty[i]; if (yp[i] > doc_height-50) { xp[i] = Math.random()*(doc_width-am[i]-30); yp[i] = 0; stx[i] = 0.02 + Math.random()/10; sty[i] = 0.7 + Math.random(); doc_width = self.innerWidth; doc_height = self.innerHeight; } dx[i] += stx[i]; document.getElementById("dot"+i).style.top = yp[i]+"px"; document.getElementById("dot"+i).style.left = xp[i] + am[i]*Math.sin(dx[i])+"px"; } setTimeout("snowNS6()", speed); } if (ns4up) { snowNS(); } else if (ie4up) { snowIE(); }else if (ns6up) { snowNS6(); } </body>