// j
function emptyIf(field,defaultValue)
{
		if (field.value == defaultValue)
		{
			field.value ="";	
		}
}
function defaultIfEmpty(field,defaultValue)
{
		if (field.value.length == 0)
		{
			field.value = defaultValue;	
		}
}




// add an event to the window onload  without overwriting existing pageload events
function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function() {
      if (oldonload) {
        oldonload();
      }
      func();
    }
  }
}



//  on page load calls (provider a wrapper to multiple steps)
function pcOnPageLoad()
{
	/*
	// do transparency
	var bord1 = $('pageborder1');
	if (bord1 != null)
	{
		bord1.setOpacity(0.80);
	}

	var bord2 = $('pageborder2');
	if (bord2 != null)
	{
		bord2.setOpacity(0.80);
	}

	var page = $('pagearea');
	if (page != null)
	{
		page.setOpacity(0.99);
	}
	*/
}

// Add onpageload event to do  tasks without overwriting existing pageload events
addLoadEvent(pcOnPageLoad);