function JSONscriptRequest(fullUrl) {
  // REST request path
  this.fullUrl = fullUrl; 
  // Keep IE from caching requests
  this.noCacheIE = '&noCacheIE=' + (new Date()).getTime();
  // Get the DOM location to put the script tag
  this.headLoc = document.getElementsByTagName("head").item(0);
  // Generate a unique script tag id
  this.scriptId = 'YJscriptI' + JSONscriptRequest.scriptCounter++;
}

// Static script ID counter
JSONscriptRequest.scriptCounter = 1;

// buildScriptTag method
JSONscriptRequest.prototype.buildScriptTag = function () {
  // Create the script tag
  this.scriptObj = document.createElement("script");

  // Add script object attributes
  this.scriptObj.setAttribute("type", "text/javascript");
  this.scriptObj.setAttribute("src", this.fullUrl + this.noCacheIE);
  this.scriptObj.setAttribute("id", this.scriptId);
}

// removeScriptTag method
JSONscriptRequest.prototype.removeScriptTag = function () {
  // Destroy the script tag
  this.headLoc.removeChild(this.scriptObj); 
}

// addScriptTag method
JSONscriptRequest.prototype.addScriptTag = function () {
  // Create the script tag
  this.headLoc.appendChild(this.scriptObj);
}