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Falling Snow for Themes

Dec 4th, 2013
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  1. <SCRIPT type="text/javascript">
  2. var snowmax=35
  3. var snowcolor=new Array("#aaaacc","#ddddff","#ccccdd","#f3f3f3","#f0ffff")
  4. var snowtype=new Array("Times","Arial","Times","Verdana")
  5. var snowletter="*"
  6. var sinkspeed=0.6
  7. var snowmaxsize=30
  8. var snowminsize=8
  9. var snowingzone=1
  10. var snow=new Array()
  11. var marginbottom
  12. var marginright
  13. var timer
  14. var i_snow=0
  15. var x_mv=new Array();
  16. var crds=new Array();
  17. var lftrght=new Array();
  18. var browserinfos=navigator.userAgent
  19. var ie5=document.all&&document.getElementById&&!browserinfos.match(/Opera/)
  20. var ns6=document.getElementById&&!document.all
  21. var opera=browserinfos.match(/Opera/)
  22. var browserok=ie5||ns6||opera
  23. function randommaker(range) {
  24. rand=Math.floor(range*Math.random())
  25. return rand
  26. }
  27. function initsnow() {
  28. if (ie5 || opera) {
  29. marginbottom = document.body.scrollHeight
  30. marginright = document.body.clientWidth-15
  31. }
  32. else if (ns6) {
  33. marginbottom = document.body.scrollHeight
  34. marginright = window.innerWidth-15
  35. }
  36. var snowsizerange=snowmaxsize-snowminsize
  37. for (i=0;i<=snowmax;i++) {
  38. crds[i] = 0;
  39. lftrght[i] = Math.random()*15;
  40. x_mv[i] = 0.03 + Math.random()/10;
  41. snow[i]=document.getElementById("s"+i)
  42. snow[i].style.fontFamily=snowtype[randommaker(snowtype.length)]
  43. snow[i].size=randommaker(snowsizerange)+snowminsize
  44. snow[i].style.fontSize=snow[i].size+'px';
  45. snow[i].style.color=snowcolor[randommaker(snowcolor.length)]
  46. snow[i].style.zIndex=1000
  47. snow[i].sink=sinkspeed*snow[i].size/5
  48. if (snowingzone==1) {snow[i].posx=randommaker(marginright-snow[i].size)}
  49. if (snowingzone==2) {snow[i].posx=randommaker(marginright/2-snow[i].size)}
  50. if (snowingzone==3) {snow[i].posx=randommaker(marginright/2-snow[i].size)+marginright/4}
  51. if (snowingzone==4) {snow[i].posx=randommaker(marginright/2-snow[i].size)+marginright/2}
  52. snow[i].posy=randommaker(2*marginbottom-marginbottom-2*snow[i].size)
  53. snow[i].style.left=snow[i].posx+'px';
  54. snow[i].style.top=snow[i].posy+'px';
  55. }
  56. movesnow()
  57. }
  58.  
  59. function movesnow() {
  60. for (i=0;i<=snowmax;i++) {
  61. crds[i] += x_mv[i];
  62. snow[i].posy+=snow[i].sink
  63. snow[i].style.left=snow[i].posx+lftrght[i]*Math.sin(crds[i])+'px';
  64. snow[i].style.top=snow[i].posy+'px';
  65.  
  66. if (snow[i].posy>=marginbottom-2*snow[i].size || parseInt(snow[i].style.left)>(marginright-3*lftrght[i])){
  67. if (snowingzone==1) {snow[i].posx=randommaker(marginright-snow[i].size)}
  68. if (snowingzone==2) {snow[i].posx=randommaker(marginright/2-snow[i].size)}
  69. if (snowingzone==3) {snow[i].posx=randommaker(marginright/2-snow[i].size)+marginright/4}
  70. if (snowingzone==4) {snow[i].posx=randommaker(marginright/2-snow[i].size)+marginright/2}
  71. snow[i].posy=0
  72. }
  73. }
  74. var timer=setTimeout("movesnow()",50)
  75. }
  76.  
  77. for (i=0;i<=snowmax;i++) {
  78. document.write("<span id='s"+i+"' style='position:absolute;top:-"+snowmaxsize+"'>"+snowletter+"</span>")
  79. }
  80. if (browserok) {
  81. window.onload=initsnow
  82. }
  83. </SCRIPT>
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