var Amount; // Anzahl der Konfettis var spd; // beeinflusst Fallgeschwindigkeit var duration; // Dauer eines Konfettiwurfs (ein negativer Wert bedeutet: unendlich) var durationCounter; var stop = false; var imgBaseURL = "http://www.swr.de/static/konfetti/img/herzenssache/"; colors=new Array(2) colors[0]="rot.gif"; colors[1]="pink.gif"; Ypos=new Array(); Xpos=new Array(); Speed=new Array(); Step=new Array(); Cstep=new Array(); function initKonfetti(amt, speed, dur) { Amount = amt; spd = speed; duration = dur; durationCounter = duration; document.write('

'); for (i = 0; i < Amount; i++){ var P=Math.floor(Math.random()*colors.length); rndCol=colors[P]; document.write('

'); } document.write('

'); WinHeight=window.document.body.clientHeight; WinWidth=window.document.body.clientWidth; for (i=0; i < Amount; i++){ Ypos[i] = Math.round(Math.random()*WinHeight); Xpos[i] = Math.round(Math.random()*WinWidth); Speed[i]= Math.random()*3+spd; Cstep[i]=0; Step[i]=Math.random()*0.1+0.05; } } function fall(){ // a negative value of durationCounter means: loop infinitely if (durationCounter > 0) { durationCounter--; } if (durationCounter == 0) { setVisibility("hidden"); stop = true; durationCounter = duration; return; } var WinHeight=window.document.body.clientHeight; var WinWidth=window.document.body.clientWidth; var hscrll=document.body.scrollTop; var wscrll=document.body.scrollLeft; for (i=0; i < Amount; i++){ sy = Math.floor(Speed[i]*Math.sin(90*Math.PI/180)); sx = Math.floor(Speed[i]*Math.cos(Cstep[i])); Ypos[i]+=sy; Xpos[i]+=sx; if (Ypos[i] > WinHeight-80){ Ypos[i]=-60; Xpos[i]=Math.round(Math.random()*WinWidth); Speed[i]=Math.random()*5+spd; } Xpos[i] = (Xpos[i] > WinWidth-30)?WinWidth-30:Xpos[i]; var newXValue = Xpos[i]+"px"; var newYValue = Ypos[i]+hscrll+"px"; document.getElementById('si'+i).style.left=newXValue; document.getElementById('si'+i).style.top=newYValue; Cstep[i]+=Step[i]; } if (!stop) { setTimeout('fall()',40); } } function setVisibility(visibility) { document.getElementById('konfetti').style.visibility = visibility; }