if( !document.getElementsByClassName )
{
	document.getElementsByClassName = function(class_name)
	{
		var docList = this.all || this.getElementsByTagName('*');
		var matchArray = new Array();
	
		/*Create a regular expression object for class*/
		var re = new RegExp("(?:^|\\s)"+class_name+"(?:\\s|$)");
		for (var i = 0; i < docList.length; i++)
		{
			if (re.test(docList[i].className) )
			{
				matchArray[matchArray.length] = docList[i];
			}
		}
		
		return matchArray;
	}
}

function switchLoginForms()
{
	var arrSwitchableElements = document.getElementsByClassName('hideable');
	
	for(var i in arrSwitchableElements)
	{
		if(arrSwitchableElements[i] != null)
		{
			if(arrSwitchableElements[i].style.display == 'none')
			{
				arrSwitchableElements[i].style.display = '';
			}
			else
			{
				arrSwitchableElements[i].style.display = 'none';
			}
		}
	}
} // switchLoginForms

// fuction to clear fields in login
function textClear(fieldText) {
	if (fieldText.value == fieldText.defaultValue) {
		fieldText.value = ""
	}
}
// fuction to write default text in login if fields are empty
function defaultText(fieldText) {
	if (fieldText.value == "") {
		fieldText.value = fieldText.defaultValue
	}
}

// fuction to use target blank in xhtml strict
function transformExternalAnchors()
{
	var i,a,f;
	if ( document.getElementsByTagName )
	{

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

		// for using in normal href tag, you you have to add: rel="external"
		// example: <a href="http://website.com" rel="external">Web Site</a>
		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 using in forms, you have to add in the form tag: title="external"
		// example: <form action=# id="frmId" title="external"></form>
		for(i=0;i<f.length;i++)
		{
			if ( f[i].getAttribute('action') && ( f[i].getAttribute("title")=="external" ) )
			{
				f[i].target = "_blank";
			}
		} // for
	} // if
} // transformExternalAnchors

window.onload = transformExternalAnchors;