//showmenu: displays the menu corresponding to menu item
function showmenu( strMenu ) {
	if( strMenu == 'webmenu' ) {
		document.getElementById('web-menu').style.display = 'block';
	}
	else if( strMenu == 'webdevmenu' ) {
		document.getElementById('webdev-menu').style.display = 'block';
	}
	else if( strMenu == 'seomenu' ) {
		document.getElementById('seo-menu').style.display = 'block';
	}
	else if( strMenu == 'gdmenu' ) {
		document.getElementById('gd-menu').style.display = 'block';
	}
	else if( strMenu == 'vomenu' ) {
		document.getElementById('vo-menu').style.display = 'block';
	}
	
}

//hidemenu: disables the menu corresponding to menu item
function hidemenu( strMenu ) {
	if( strMenu == 'webmenu' ) {
		document.getElementById('web-menu').style.display = 'none';
	}
	else if( strMenu == 'webdevmenu' ) {
		document.getElementById('webdev-menu').style.display = 'none';
	}
	else if( strMenu == 'seomenu' ) {
		document.getElementById('seo-menu').style.display = 'none';
	}
	else if( strMenu == 'gdmenu' ) {
		document.getElementById('gd-menu').style.display = 'none';
	}
	else if( strMenu == 'vomenu' ) {
		document.getElementById('vo-menu').style.display = 'none';
	}

}