function HideContent(d) {
	if(d.length < 1) { return; }
	document.getElementById(d).style.display = "none";
}
function ShowContent(d) {
	if(d.length < 1) { return; }
	document.getElementById(d).style.display = "block";
	alert(d);
}
function ReverseContentDisplay(d) {
	if(d.length < 1) { return; }
	if(document.getElementById(d).style.display == "none") { document.getElementById(d).style.display = "block"; }
	else { document.getElementById(d).style.display = "none"; }
}

/** Email Generator to prevent spam */
function display_email_link(who, url, name_to_display, subj) { 
	document.write("<a href=\"mailto");
	document.write(":" + who + "@"); 
	document.write(url);
	if (subj != null)
	{
		document.write("?subject=" + subj);
	}
	document.write("\">" + name_to_display + "<\/a>");
}
/*
END Email function
*/



/**
* CSS Class Utility - For manipulating CSS classes of an HTML element.
* 
* This module defines a single global symbol named CSSClass. This object
* contains utility functions for working with the class attribute (className
* property) of HTML elements. All functions take two arguments: the element
* e being tested or manipulated and the CSS class c that is to be tested,
* added or removed. If element e is a string, it is taken as an element id
* and passed to document.getElementById().
*/
var CSSClass = {}; // Create our namespace object

// Return true if element e is a member of the class c; return false otherwise
CSSClass.is = function(e, c) {
	if (typeof e == "string") e = document.getElementById(e); // element id
	
	// Before doing a regexp search, optimize for a couple of common cases.
	var classes = e.className;
	if (!classes) return false; // Not a member of any classes
	if (classes == c) return true; // Member of just this one class
	
	// Otherwise, use a regular expression to search for c as a word by itself.
	// \b in a regular expression requires a match at a word boundary.
	return e.className.search("\\b" + c + "\\b") != -1;
}

// Add class c to the className of element e if it is not already there.
CSSClass.add = function(e, c) {
	if (typeof e == "string") e = document.getElementById(e); // element id
	if (CSSClass.is(e, c)) return; // If already a member, do nothing
	if (e.className) c = " " + c; // Whitespace seperator if needed
	e.className += c; // Append the new class to the end
}

// Remove all occurrences (if any) of class c from the className of element e
CSSClass.remove = function(e, c) {
	if (typeof e == "string") e = document.getElementById(e); // element id
	// Search the className for all occurrences of c and replace with "".
	// \s* matches any number of whitespace characters.
	// "g" makes the regular expression match any number of occurences
	e.className = e.className.replace(new RegExp("\\b" + c + "\\b\\s*", "g"), "");
}

/**
* End CSSClass Utility
*/