function IsImgType(src) {      var rFilter = /^(?:image\/bmp|image\/cis\-cod|image\/gif|image\/ief|image\/jpeg|image\/jpeg|image\/jpeg|image\/pipeg|image\/png|image\/svg\+xml|image\/tiff|image\/x\-cmu\-raster|image\/x\-cmx|image\/x\-icon|image\/x\-portable\-anymap|image\/x\-portable\-bitmap|image\/x\-portable\-graymap|image\/x\-portable\-pixmap|image\/x\-rgb|image\/x\-xbitmap|image\/x\-xpixmap|image\/x\-xwindowdump)$/i;      var Filter = /(?:bmp|cis\-cod|gif|ief|jpeg|jpeg|jpeg|pipeg|png|svg\+xml|tiff|x\-cmu\-raster|x\-cmx|x\-icon|x\-portable\-anymap|x\-portable\-bitmap|x\-portable\-graymap|x\-portable\-pixmap|x\-rgb|x\-xbitmap|x\-xpixmap|x\-xwindowdump)$/i;      return rFilter.test(src) || Filter.test(src);  }

function detectColor(value) {     var pattern = /^#[0-9a-fA-F]{6}$/; //#XXXXXX     var result;     var rgbRegex = /(^rgb\((\d+),\s*(\d+),\s*(\d+)\)$)|(^rgba\((\d+),\s*(\d+),\s*(\d+)(,\s*\d+\.\d+)*\)$)/;     if (pattern.test(value)) {         result = value;     } else if (rgbRegex.test(value)) { //rgba(0, 0, 0, 0)         result = value;     }     return result; }

 function zero_fill_hex(num, digits) {      var s = num.toString(16);      while (s.length < digits) {          s = "0" + s;      }      return s;  }  function rgb2hex(rgb) {      if (rgb.charAt(0) == '#') {          return rgb;      }      var ds = rgb.split(/\D+/);      var decimal = Number(ds[1]) * 65536 + Number(ds[2]) * 256 + Number(ds[3]);      return "#" + zero_fill_hex(decimal, 6);  }

 function testEmail (value, target) {      value = value.trim();      if (!/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(value)) {          target.val("");          alert("Please fill in the correct E-mail address!");      }  }

function createImgData(img) {     var image = new Image();     image.src = img.src || img;     var tmpCanvas = $("<canvas></canvas>")[0];     var tmpCtx = tmpCanvas.getContext("2d");     if (tmpCanvas) {         tmpCanvas.width = image.width;         tmpCanvas.height = image.height;         tmpCtx.drawImage(image, 0, 0);         return tmpCanvas.toDataURL();     } }