function openClose(id,mode){
	if(document.getElementById) {
		element = document.getElementById(id);
	} else if(document.all) {
		element = document.all[id];
	} else return;
	
	if(element.style) {
		if(mode == 0) {
			if(element.style.display == 'block' ) {
				element.style.display = 'none';
			} else {
				element.style.display = 'block';
			}
		} else if(mode == 1) {
			element.style.display = 'block';
		} else if(mode == -1) {
			element.style.display = 'none';
		}
	}
}	

function changeClass(id){
	if(document.getElementById) {
		element = document.getElementById(id);
	} else if(document.all) {
		element = document.all[id];
	} else return;
	if(element.style) {
			if(element.className == 'collapsed' ) {
				element.className = 'expanded';
			} else {
				element.className = 'collapsed';
			}
    }
}