window.onload = doOnLoad;

/**
 *
 * @access public
 * @return void
 **/
function doOnLoad()
{
	transformExternalAnchors();
	pngFix();
}  // doOnLoad


/**
 *
 * @access public
 * @return void
 **/
function pngFix()
{
/*

Correctly handle PNG transparency in Win IE 5.5 & 6.
http://homepage.ntlworld.com/bobosola. Updated 18-Jan-2006.

Use in <HEAD> with DEFER keyword wrapped in conditional comments:
<!--[if lt IE 7]>
<script defer type="text/javascript" src="common.js">pngFix();</script>
<![endif]-->

*/
	var arVersion = navigator.appVersion.split("MSIE")
	var version = parseFloat(arVersion[1])

	if ((version >= 5.5) && (document.body.filters))
	{
	   for(var i=0; i<document.images.length; i++)
	   {
	      var img = document.images[i]
	      var imgName = img.src.toUpperCase()
	      if (imgName.substring(imgName.length-3, imgName.length) == "PNG")
	      {
	         var imgID = (img.id) ? "id='" + img.id + "' " : ""
	         var imgClass = (img.className) ? "class='" + img.className + "' " : ""
	         var imgTitle = (img.title) ? "title='" + img.title + "' " : "title='" + img.alt + "' "
	         var imgStyle = "display:inline-block;" + img.style.cssText
	         if (img.align == "left") imgStyle = "float:left;" + imgStyle
	         if (img.align == "right") imgStyle = "float:right;" + imgStyle
	         if (img.parentElement.href) imgStyle = "cursor:hand;" + imgStyle
	         var strNewHTML = "<span " + imgID + imgClass + imgTitle
	         + " style=\"" + "width:" + img.width + "px; height:" + img.height + "px;" + imgStyle + ";"
	         + "filter:progid:DXImageTransform.Microsoft.AlphaImageLoader"
	         + "(src=\'" + img.src + "\', sizingMethod='scale');\"></span>"
	         img.outerHTML = strNewHTML
	         i = i-1
	      }
	   }
	}
} // pngFix


/**
*	Allow you to use an emulation of
*	target="_blank"
*
*/
function transformExternalAnchors()
{
	var i,a,f;
	if ( document.getElementsByTagName )
	{

		a = document.getElementsByTagName("a");
		i = 0;

		for(i=0;i<a.length;i++)
		{
			if ( a[i].getAttribute('href') && ( a[i].getAttribute("rel")=="external" ) )
			{
				a[i].target = "_blank";
			}
		} // for

		f = document.getElementsByTagName("form");
		i = 0;

		for(i=0;i<f.length;i++)
		{
			if ( f[i].getAttribute('action') && ( f[i].getAttribute("title")=="external" ) )
			{
				f[i].target = "_blank";
			}
		} // for
	} // if
} // transformExternalAnchors

/**
 *
 * @access public
 * @return void
 **/
function display(obj, imageObj)
{
	var currentImage = $(imageObj);

	if($(obj).style.display == 'none')
	{
		if(obj=="commentList")
			$('commentOption').innerHTML = 'Hide comments';

		$(obj).style.display="";
		currentImage.src = '/images/arrow_up.png';
	}
	else
	{
		if(obj=="commentList")
			$('commentOption').innerHTML = 'Show comments';

		$(obj).style.display='none';
		currentImage.src = '/images/arrow_down.png';
	} // if

} // display




function $() {
	var elements = new Array();
	for (var i = 0; i < arguments.length; i++) {
		var element = arguments[i];
		if (typeof element == 'string')
			element = document.getElementById(element);
		if (arguments.length == 1)
			return element;
		elements.push(element);
	}
	return elements;
}




function is_email(str)
{
	return ( ( str.indexOf("@")>0 ) && ( str.indexOf(".")>0 ) );
} // is_email




function is_empty(str)
{
	return ( str==null || str==0 || str=="" || str.length<1 );
} // is_empty



