function f_DisplayElement(idName, state){
	var element = document.getElementById(idName);
	if(state == 0){
		element.style.visibility = 'hidden';
	}else if(state == 1){
		element.style.visibility = 'visible';
	}else	if(element.style.visibility == 'hidden'){
		element.style.visibility = 'visible';
	}
	else{
		element.style.visibility = 'hidden';
	}
}

function f_SubContent(currentContent, number){
	contentClass = new String();
	titleClass = new String();
	for (count = number; count > 0; count--){
		contentClass = "content" + count;
		titleClass = "title" + count;
		if (count == currentContent ){
			if(document.getElementById(contentClass).className != 'visibleContent'){
				document.getElementById(contentClass).className = 'visibleContent';
				document.getElementById(titleClass).className = 'opened';
			}else{
				document.getElementById(contentClass).className = 'hidden';
				document.getElementById(titleClass).className = 'closed';
			}
		}else{
			document.getElementById(contentClass).className = 'hidden';
			document.getElementById(titleClass).className = 'closed';
		}
	}
}

function f_TabsMenu(currentContent, number){
	for (count = number; count > 0; count--){
		contentClass = "content" + count;
		titleClass = "tab" + count;
		if (count == currentContent ){
			document.getElementById(contentClass).className = 'visible';
			document.getElementById(titleClass).className = 'tab_front';
		}else{
			document.getElementById(contentClass).className = 'hidden';
			document.getElementById(titleClass).className = 'tab_back';
		}
	}
}