// JScript File
function clearTextBox(id, pattern) {
    var element = document.getElementById(id);
    if (element.value==pattern) {
        element.value = '';
    }
}


function showHideDiv(id) {
    var element = document.getElementById(id);
    if (element.style.display=='block') {
        element.style.display='none';
    } else {
        element.style.display='block';
    }
}


//to change a text field to a password field
//source: http://www.universalwebservices.net/web-programming-resources/javascript/change-input-element-type-using-javascript
function changeInputType(oldObject, oType) {
  var newObject = document.createElement('input');
  newObject.type = oType;
  if(oldObject.size) newObject.size = oldObject.size;
  if(oldObject.value) newObject.value = oldObject.value;
  if(oldObject.name) newObject.name = oldObject.name;
  if(oldObject.id) newObject.id = oldObject.id;
  if(oldObject.className) newObject.className = oldObject.className;
  oldObject.parentNode.replaceChild(newObject,oldObject);
  return newObject;
}

//Jquery additions
jQuery.fn.center = function () { 
    this.css("position","absolute"); 
    //this.css("top", ( $(window).height() - this.height() ) / 2+$(window).scrollTop() + "px"); 
    this.css("left", ( $(window).width() - this.width() ) / 2+$(window).scrollLeft() + "px");
    return this; 
}