common.js

//get key code
function getKeyCode(eventToGetKeyCode){
  if(window.event){ // IE
    return eventToGetKeyCode.keyCode;
  }else if(eventToGetKeyCode.which) { // Netscape/Firefox/Opera
    return eventToGetKeyCode.which;
  }
}

//add event handler
function addEventHandler(obj, eventName, handler){
if(document.attachEvent){
obj.attachEvent("on" + eventName, handler);
}else if(document.addEventListener){
obj.addEventListener(eventName, handler, false);
}
}

//event-removing function for cross browser
function removeEventHandler(obj, eventName, handler){
if(document.detachEvent){
obj.detachEvent("on" + eventName, handler);
}else if(document.removeEventListener){
obj.removeEventListener(eventName, handler, false);
}
}

//clear child nodes
function clearChildNodes(nodeToClear){
  for(var i = nodeToClear.childNodes.length; i > 0 ; i--){
    nodeToClear.removeChild(nodeToClear.childNodes[i - 1]);
  }
}

//set inner text
function setInnerText(nodeToSet, textToSet){
  clearChildNodes(nodeToSet);
  //var textArray = textToSet.toString().split("<br>");
  var textArray = textToSet.toString().split(/<br>/i);
  for(i = 0 ; i < textArray.length ; i++){
  if(i > 0){ nodeToSet.appendChild(document.createElement("br")); }
    var newTextNode = document.createTextNode(textArray[i]);
    nodeToSet.appendChild(newTextNode);
  }
}

//print all object attributes
function printObjectAttribute(objToPrint){
var textToPrint = "";
for(var attr in objToPrint){
 textToPrint += attr + " : " + objToPrint[attr] + "\n";
}
console.log("\n\n\n" + textToPrint + "\n\n\n");
}

function percentEncode(str){
  if(str == null){ return ""; }  
  str = encodeURIComponent(str);  
  str = str.replace(/\!/g, "%21");
  str = str.replace(/\*/g, "%2A");
  str = str.replace(/\'/g, "%27");
  str = str.replace(/\(/g, "%28");
  str = str.replace(/\)/g, "%29");
  str = str.replace(/\;/g, "%3B");
  str = str.replace(/\:/g, "%3A");
  str = str.replace(/\@/g, "%40");
  //str = str.replace(/\&/g, "%26");
  str = str.replace(/\=/g, "%3D");
  str = str.replace(/\+/g, "%2B");
  str = str.replace(/\$/g, "%24");
  str = str.replace(/\,/g, "%2c");
  str = str.replace(/\//g, "%2F");
  str = str.replace(/\#/g, "%23");
  str = str.replace(/\[/g, "%5B");
  str = str.replace(/\]/g, "%5D");  
  return str;
}

//trim
function trim(str){
str = str.replace(/(^\s*)|(\s*$)/g,"");
return str;
}

function calculateFontSizeFitsInWidth(pDefaultFontSize, pMaxWidth, pFontFamily, pStringToTest){
  var testSpan = document.createElement("span");
  testSpan.style.position = "absolute";
  testSpan.style.left = "9999px";
  testSpan.style.top = "9999px";
  testSpan.style.whiteSpace = "nowrap";
  document.body.appendChild(testSpan);
  if(pFontFamily){
    testSpan.style.fontFamily = pFontFamily;
  }
  testSpan.innerText = pStringToTest;
  var curFontSize = pDefaultFontSize;
  var isFitNow = false;
  while(!isFitNow){
    testSpan.style.fontSize = curFontSize + "px";
    if(testSpan.offsetWidth > pMaxWidth){
    curFontSize--;
    }else{
    isFitNow = true;
    }
  }
  document.body.removeChild(testSpan);
  return curFontSize;
}

function objectToJSONString(pObject){
if(!pObject){return "";}
  var isArray = (pObject.join && pObject.pop && pObject.push && pObject.reverse && pObject.shift && pObject.slice && pObject.splice);
  var results = [];
  for(var i in pObject){
    var value = pObject[i];
    if((typeof value) == "object"){
      results.push((isArray ? "" : (i.toString() + ":")) + objectToJSONString(value));
    }else if(value){
    results.push((isArray ? "" : (i.toString() + ":")) + (typeof value == "string" ? "\"" + value + "\"" : value));
    }else{
    }
  }
  return (isArray ? "[" : "{") + results.join(", ") + (isArray ? "]" : "}");
}