// picture Gallery background colours
var currentPicColor = '#6A6dbe';
var unselectedColor = '#000';
var deadLinkColor = '#ccc';


function toggleCollapsable(linkId, contentId) {
	
	if (document.getElementById(contentId).style.display == "none") {
		
		for (var i = 2; i < arguments.length; i+=2) {	
			document.getElementById(arguments[i]).innerHTML = collapsableShowText ;
			document.getElementById(arguments[i]).className = 'show'; 
			document.getElementById(arguments[i+1]).style.display = "none";
		}
		document.getElementById(linkId).innerHTML = collapsableHideText ;
		document.getElementById(linkId).className = 'hide'; 
		document.getElementById(contentId).style.display = "";
	} else {
		document.getElementById(linkId).innerHTML = collapsableShowText;
		document.getElementById(linkId).className = 'show'; 
		document.getElementById(contentId).style.display = "none";
	}
}