var running_animation = 0;
var animation_id = 0;

function setAtt(element_id, attname, attvalue) {
	var obj = window.document.getElementById(element_id); 
	if (obj) {
		style_obj = obj.style;
		style_obj[attname] = attvalue ;
	}
	else
		window.alert("Name: " + element_id + " ist nicht definiert");
}

function changeDisplay(name, value) {
	var obj = window.document.getElementById(name); 
	if (obj) {
		style_obj = obj.style;
		style_obj.display = value ;
	}
	else
		window.alert("Name: " + name + " ist nicht definiert");
}

function show_element(name) {
	changeDisplay(name, "block");
}

function hide_element(name) {
	changeDisplay(name, "none");
}



// Init

function init() {
	
}

function setFocus(element) {
	
	if (element)
		element.focus();
}
// Animationshandler

function handleOverTime() {
	
	
	
}


// Clicks

function clickFoto(name) {
	
	var fotoname = name;
	var img_name = "technik";
	var element;
	
	element = document.getElementById(img_name);
	if (element) {
		element.src = fotoname;
		show_element("Technik_gross");
	}
	else
		window.alert("Foto " + img_name + " nicht gefunden!");
	
	
}

function clickBigfoto() {
	hide_element("Technik_gross");
}



// Animationen

function overMenu(id, selected) {
	if (selected == 0 || selected == 2) {
		setAtt(id,"width","148px");
		if (selected == 0) {
			hide_element("textpart");
			show_element("info_" + id);
			show_element("textpart");
		}
	}
	
}


function outMenu(id, selected) {
	if (selected == 0 || selected == 2) {
		setAtt(id,"width","180px");
		if (selected == 0) {
			hide_element("textpart");
			hide_element("info_" + id);
			show_element("textpart");
		}
	}
	
}

function overHighlight(id) {
	//setAtt("hl_" + id,"fontSize","x-large");	
	show_element("hl_explanation_" + id);	
}


function outHighlight(id) {
	//setAtt("hl_" + id,"fontSize","large");	
	hide_element("hl_explanation_" + id);
}

function overFoto(nr) {
	var element = "nr" + nr;
	hide_element("textpart");
	setAtt(element,"zIndex",10);
	show_element("textpart");
}


function outFoto(nr) {
	var element = "nr" + nr;
	hide_element("textpart");
	setAtt(element,"zIndex",1);
	show_element("textpart");
}