function conferences(){
	var my_array = getElementsByClass('ContentUserControl eventcalendar ccontent');
	for (i=0; i<my_array.length; i++) {
		my_array[i].style.display = 'block';
	}
	
	var my_array = getElementsByClass('ContentUserControl eventcalendar scontent');
	for (i=0; i<my_array.length; i++) {
		my_array[i].style.display = 'none';
	}
	
	var my_array = getElementsByClass('ContentUserControl eventcalendar wcontent');
	for (i=0; i<my_array.length; i++) {
		my_array[i].style.display = 'none';
	}

	document.getElementById('conftab').className = 'on';
	document.getElementById('semtab').className = '';
	document.getElementById('webtab').className = '';
}


function seminars(){
	var my_array = getElementsByClass('ContentUserControl eventcalendar ccontent');
	for (i=0; i<my_array.length; i++) {
		my_array[i].style.display = 'none';
	}
	
	var my_array = getElementsByClass('ContentUserControl eventcalendar scontent');
	for (i=0; i<my_array.length; i++) {
		my_array[i].style.display = 'block';
	}
	
	var my_array = getElementsByClass('ContentUserControl eventcalendar wcontent');
	for (i=0; i<my_array.length; i++) {
		my_array[i].style.display = 'none';
	}

	document.getElementById('conftab').className = '';
	document.getElementById('semtab').className = 'on';
	document.getElementById('webtab').className = '';
}


function webinars(){
	var my_array = getElementsByClass('ContentUserControl eventcalendar ccontent');
	for (i=0; i<my_array.length; i++) {
		my_array[i].style.display = 'none';
	}
	
	var my_array = getElementsByClass('ContentUserControl eventcalendar scontent');
	for (i=0; i<my_array.length; i++) {
		my_array[i].style.display = 'none';
	}
	
	var my_array = getElementsByClass('ContentUserControl eventcalendar wcontent');
	for (i=0; i<my_array.length; i++) {
		my_array[i].style.display = 'block';
	}

	document.getElementById('conftab').className = '';
	document.getElementById('semtab').className = '';
	document.getElementById('webtab').className = 'on';
}



//Create an array of tags
function getElementsByClass(theClass) {
    var allPageTags = new Array();

    //Populate the array with all the page tags
    allPageTags=document.getElementsByTagName("*");
	var Elements = new Array();

    //Cycle through the tags
    var n = 0;
    for (i=0; i<allPageTags.length; i++) {
        //Pick out the tags with our class name
        if (allPageTags[i].className==theClass) {
			Elements[n] = allPageTags[i];
            n++;
        }
    }

    return Elements;
}