/*

	Filename: portfolio.js

	Author: J Christopher Garcia
	
	Description: Adds new onload functions to window.onload for portfolio-specific behavior.

*/


intViewMenu = function() {

	var viewMenu = document.getElementById('viewMenu');
		
	if ( viewMenu ) {
		
		var links = viewMenu.getElementsByTagName('a');
			
		for ( i = links.length - 1; i >= 0; i-- ) {
						
			var link = links[i];
			
			var target = document.getElementById( getAnchorFromHref( link.href ) ); // Is the referenced  element in the current document?
			
			if ( target ) { // Yes: Display it when clicked
							
				link.onclick = function() {
	
					if ( intViewMenu.selectedMenuItem ) {
					
						selectedItem = document.getElementById( getAnchorFromHref( intViewMenu.selectedMenuItem.href ) );
					
						deselectMenuItem( selectedItem );
						deselectMenuItem( intViewMenu.selectedMenuItem );
					}
										
					selectMenuItem( this );
					selectMenuItem( document.getElementById( getAnchorFromHref( this.href ) ) );
					
					intViewMenu.selectedMenuItem = this;
					
					return false;
				
				}
			
			}
			
			else {  // No: don't do anything when clicked
			
				link.onclick = function() { return false; }
			
			}
		
		}
		
		link.onclick();
		
	}
	

} // end intViewMenu



function selectMenuItem( item ) {

	item.className = appendToClassName( 'selected', item.className );
					
} // end selectMenuItem



function deselectMenuItem( item ) {

	item.className = removeFromClassName( 'selected', item.className );
					
} // end deselectMenuItem


window.onload = appendEvent( intViewMenu, window.onload );