function externalLinks()
{
if (!document.getElementsByTagName) return ;
var anchors = document.getElementsByTagName("a") ;
for (var i=0; i<anchors.length; i++)
	{
	var anchor = anchors[i] ;
	if (anchor.getAttribute("href") && anchor.getAttribute("rel") == "newTab")
	anchor.target = "_blank" ;
	}
}
window.onload = externalLinks ;
// Resolves issue of '_target' depreciation in XHTML 1.0 strict. Script allows an external link to be opened in a new window under XHTML 1.0 Strict.
// Uses a custom value ('newTab') for the rel attribute to identify which links are to be opened in a new browser window. 
// Note the last line, which assigns the externalLinks function to the window's onload event handler. This triggers the function when the document has finished loading.