gistfile1.js

// quick test for box-shadow support of inset and spread radius
// and datauri test

// boxshadow test needs other prefixes added.

var docElem = document.documentElement;

// if WebkitBoxShadow is supported at all then:
if (docElem.style.WebkitBoxShadow !== undefined) { /* basic support */ }

// first, clear any previous style
docElem.style.WebkitBoxShadow = '';

// test spread
docElem.style.WebkitBoxShadow = '0px 20px 10px -10px #888';
var isSpreadSupported = docElem.style.WebkitBoxShadow !== '';

docElem.style.WebkitBoxShadow = '';

// test inset
docElem.style.WebkitBoxShadow = 'inset 0px 0px 3px #333';
var isInsetSupported = docElem.style.WebkitBoxShadow !== '';

docElem.style.WebkitBoxShadow = '';


console.log('isSpreadSupported: ',isSpreadSupported,' and isInsetSupported: ',isInsetSupported);




    Modernizr.addTest('datauri',function(){
      var data = new Image();
      data.onload = data.onerror = function(){
      	return (this.width == 1 && this.height == 1);
      }
      data.src = "data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///ywAAAAAAQABAAACAUwAOw==";
    })