function hideElement(id) {
		var examtitle = "examtitle"+id.substr(4);
		var bloqueDiv = document.getElementById(examtitle);
		var botonOcultarYVerMas=getElementsByClass("egetsuvo",bloqueDiv,"a");
		if (document.getElementById(id) != null) { 
			document.getElementById(id).style.display = 'none';
		}
		for(i=1;i<botonOcultarYVerMas.length;i+=2){
			botonOcultarYVerMas[i].style.display="none";
		}
		for(j=0;j<botonOcultarYVerMas.length;j+=2){
			botonOcultarYVerMas[j].style.display="block";
		}
	}
	
	function showElement(id) {
		var examtitle = "examtitle"+id.substr(4);
		var bloqueDiv = document.getElementById(examtitle);
		var botonOcultarYVerMas=getElementsByClass("egetsuvo",bloqueDiv,"a");
		if (document.getElementById(id) != null) { 
			document.getElementById(id).style.display = 'block';
		}
		for(i=1;i<botonOcultarYVerMas.length;i+=2){
			botonOcultarYVerMas[i].style.display="block";
		}
		for(j=0;j<botonOcultarYVerMas.length;j+=2){
			botonOcultarYVerMas[j].style.display="none";
		}
	}
		
	
	function getElementsByClass(searchClass,node,tag) {
		var classElements = new Array();
		if ( node == null )
			node = document;
		if ( tag == null )
			tag = '*';
		var els = node.getElementsByTagName(tag);
		var elsLen = els.length;
		var pattern = new RegExp("(^|\\s)"+searchClass+"(\\s|$)");
		for (i = 0, j = 0; i < elsLen; i++) {
			if ( pattern.test(els[i].className) ) {
				classElements[j] = els[i];
				j++;
			}
		}
		return classElements;
	}