// JavaScript Document

var col = true;

function showHide(element) {
	document.getElementById(element).style.display=(document.getElementById(element).style.display== 'block')?'none':'block';
}
function getElementsByClassName(classname,tag) {
	if(!tag) {
		tag = "*";
	}
	var anchs =  document.getElementsByTagName(tag);
	var total_anchs = anchs.length;
	var regexp = new RegExp('\\b' + classname + '\\b');
	var class_items = new Array()
	
	for(var i=0;i<total_anchs;i++) { //Go thru all the links seaching for the class name
		var this_item = anchs[i];
		if(regexp.test(this_item.className)) {
			class_items.push(this_item);
		}
	}
	return class_items;
}

function showHideAll() {
	var ocs = getElementsByClassName('collapsable','div');
	for(var i = 0; i < ocs.length; i++) {
		if(col) {
			ocs[i].style.display='none';
		} else {
			
			ocs[i].style.display='block';
		}
	}
	if(col) {
		col = false;
	} else {
		col = true;
	}
}