Posted By

HelloKit on 02/19/11


Tagged

resolution iphone ipod iPad


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aaearhart
tcelestino


Detect iPhone/iPad, window resolution and setup CSS classes


 / Published in: JavaScript
 

Also selects different sized header images for better image quality.

  1. var iDevice = '';
  2. if (/iPhone/.test(navigator.userAgent) || /iPod/.test(navigator.userAgent)) {
  3. iDevice = ' iphone';
  4. } else if (/iPad/.test(navigator.userAgent)) {
  5. iDevice = ' ipad';
  6. }
  7. var myWidth = 0;
  8. if( typeof( window.innerWidth ) == 'number' ) {
  9. //Non-IE
  10. myWidth = window.innerWidth;
  11. } else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) {
  12. //IE 6+ in 'standards compliant mode'
  13. myWidth = document.documentElement.clientWidth;
  14. } else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {
  15. //IE 4 compatible
  16. myWidth = document.body.clientWidth;
  17. }
  18. document.write("<DIV ID=\"page");
  19. if (myWidth>1024) {
  20. if (myWidth>1280) {
  21. document.write("-over-1280");
  22. }
  23. document.write("\" CLASS=\"highres");
  24. }
  25. else {
  26. document.write("\" CLASS=\"lowres");
  27. }
  28. document.write(iDevice);
  29. document.write("\"><DIV ID=\"header\"><A HREF=\"/\"><IMG ID=\"masthead\" SRC=\"/");
  30. if (myWidth>1152) {
  31. document.write("1280");
  32. }
  33. else if (myWidth>1024) {
  34. document.write("1152");
  35. }
  36. else if (myWidth>800) {
  37. document.write("1024");
  38. }
  39. else if (myWidth>640) {
  40. document.write("800");
  41. }
  42. else {
  43. document.write("640");
  44. }
  45. document.write(".png\" ALT=\"confoozled.com\"></A></DIV>");

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