//Updated Nov. 2010 - crc

// this function is needed to work around 
  // a bug in IE related to element attributes
function hasClass(obj) {
	 var result = false;
	 if (obj.getAttributeNode("class") != null) {
		 result = obj.getAttributeNode("class").value;
	 }
	 return result;
}   

 function stripe(id) {

    // the flag we'll use to keep track of 
    // whether the current row is odd or even
    var even = false;
  
    // if arguments are provided to specify the colours
    // of the even & odd rows, then use the them;
    // otherwise use the following defaults:
    var evenColor = arguments[1] ? arguments[1] : "#fff";
    var oddColor = arguments[2] ? arguments[2] : "#eee";
  
    // obtain a reference to the desired table
    // if no such table exists, abort
    var table = document.getElementById(id);
    if (! table) { return; }
    
    // by definition, tables can have more than one tbody
    // element, so we'll have to get the list of child
    // <tbody>s 
    var tbodies = table.getElementsByTagName("tbody");

    // and iterate through them...
    for (var h = 0; h < tbodies.length; h++) {
    
     // find all the &lt;tr&gt; elements... 
      var trs = tbodies[h].getElementsByTagName("tr");
      
      // ... and iterate through them
      for (var i = 0; i < trs.length; i++) {

        // avoid rows that have a class attribute
        // or backgroundColor style
        if (! hasClass(trs[i]) &&
            ! trs[i].style.backgroundColor) {
 		  
          // get all the cells in this row...
          var tds = trs[i].getElementsByTagName("td");
        
          // and iterate through them...
          for (var j = 0; j < tds.length; j++) {
        
            var mytd = tds[j];

            // avoid cells that have a class attribute
            // or backgroundColor style
            if (! hasClass(mytd) &&
                ! mytd.style.backgroundColor) {
        
              mytd.style.backgroundColor =
                even ? evenColor : oddColor;
            
            }
          }
        }
        // flip from odd to even, or vice-versa
        even =  ! even;
      }
    }
  }
  
function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function() {
      if (oldonload) {
        oldonload();
      }
      func();
    }
  }
}

function isValidObject(objToTest) {
	if ("undefined" === typeof objToTest) {
		//alert(objToTest + ' is undefined so stating that isValidObject is false.');
		return false;
	}
	if (null == objToTest) {
		//alert(objToTest + ' is null so stating that isValidObject is false.');
		return false;
	}
	//alert (objToTest + ' is an object and it is not set to null, so returning a True.');
	return true;
}

function isNotBlank(objToTest) {
	var hasData = false;
	if (isValidObject(objToTest)) {
		//alert(objToTest + ' is a valid object. Lets now test its contents.');
		if (objToTest.toString()!=='') {
			//alert ('objToTest.toString() is ' + objToTest.toString());
			hasData = true;
		}
	}
	//alert('isNotBlank is returning ' +  hasData);
	return hasData;
}

function adjustIframeSize(id) {
	//This will make an iframe look like part of the main document by adjusting the height. Call this function in the onLoad event of the parent document.
	var myIframe = document.getElementById(id);
	if (myIframe) {
		if (myIframe.contentDocument && myIframe.contentDocument.body.scrollHeight) {
			//W3C DOM iframe doc syntax
			myIframe.height = myIframe.contentDocument.body.scrollHeight;
		} else if (myIframe.Document && myIframe.Document.body.scrollHeight) {
			//IE DOM syntax
			myIframe.height = myIframe.Document.body.scrollHeight;
		}
	}
}