//////////////////////////////////////////////
//Function that changes page language and all other stuff related to that event
//////////////////////////////////////////////
function change_lang(jezik_user)
{
	var page = document.getElementById('stranica');
	var jezik = document.getElementById('jezik');
	var content = document.getElementById('content');
	var titlepic = document.getElementById('title_pic');
	var titlepic_pre = document.getElementById('title_image_'+jezik_user+'_pre');
	var flag_to_off = document.getElementById('flag_'+jezik.value);
	var flag_to_on = document.getElementById('flag_'+jezik_user);

	//Flags turn
	flag_to_off.src = "graphics/"+jezik.value+"_small_off.gif";
	flag_to_on.src = "graphics/"+jezik_user+"_small_on.gif";

	//Buttons turn
	var button = document.getElementById(jezik.value);
	button.style.display = 'none';
	button = document.getElementById(jezik_user);
	button.style.display = 'block';

	//Setting new title picture - try catch for old implementations
	try {
	titlepic.style.background = "url("+titlepic_pre.src+")";
	} catch (error) {}
	
	//Setting new page content - try catch for old implementations
	try {
	content.src = "content_"+jezik_user+"/"+page.value+"_"+jezik_user+".htm";
	} catch (error) {}

	//Setting new webpage title
	change_title(page.value, jezik_user);

	//Setting new language
	jezik.value = jezik_user;
}
//////////////////////////////////////////////
//Function that changes page content and all other stuff related to that event
//////////////////////////////////////////////
function change_page(user_page)
{
	var jezik = document.getElementById('jezik');
	var content = document.getElementById('content');
	var page = document.getElementById('stranica');
	
	//Switching picture backgrounds
	var button_to_off = document.getElementById(page.value+'_hr');
	button_to_off.style.background = "url(graphics/button_1.gif)";
	button_to_off = document.getElementById(page.value+'_en');
	button_to_off.style.background = "url(graphics/button_1.gif)";
	button_to_off = document.getElementById(page.value+'_de');
	button_to_off.style.background = "url(graphics/button_1.gif)";
	var button_to_on = document.getElementById(user_page+'_hr');
	button_to_on.style.background = "url(graphics/button_down1.gif)";
	button_to_on = document.getElementById(user_page+'_en');
	button_to_on.style.background = "url(graphics/button_down1.gif)";
	button_to_on = document.getElementById(user_page+'_de');
	button_to_on.style.background = "url(graphics/button_down1.gif)";
	
	//Switching text color
	var color_to_on = "#FFFFFF";
	var color_to_off = "#003399";
	
	button_to_off = document.getElementById(page.value+'_button_hr');
	button_to_off.style.color = color_to_off;
	button_to_off = document.getElementById(page.value+'_button_en');
	button_to_off.style.color = color_to_off;
	button_to_off = document.getElementById(page.value+'_button_de');
	button_to_off.style.color = color_to_off;
	button_to_on = document.getElementById(user_page+'_button_hr');
	button_to_on.style.color = color_to_on;
	button_to_on = document.getElementById(user_page+'_button_en');
	button_to_on.style.color = color_to_on;
	button_to_on = document.getElementById(user_page+'_button_de');
	button_to_on.style.color = color_to_on;
	
	//Setting new webpage title
	change_title(user_page, jezik.value);
	
	//Setting new content
	content.src = "content_"+jezik.value+"/"+user_page+"_"+jezik.value+".htm";
	
	//Setting new page value
	page.value = user_page;
	
}
//////////////////////////////////////////////
//Function that changes page title and all other stuff related to that event
//////////////////////////////////////////////
function change_title(page, lang)
{
	var naslovi = new Array();

	if(lang == 'hr') 
	{
		naslovi[1] = "IST d.o.o.: Naslovnica";
		naslovi[2] = "IST d.o.o.: O nama";
		naslovi[3] = "IST d.o.o.: Što proizvodimo";
		naslovi[4] = "IST d.o.o.: Naše reference";
		naslovi[5] = "IST d.o.o.: Kontakt";
		
	}
	else if(lang == 'en')
	{
		naslovi[1] = "IST d.o.o.: Homepage";
		naslovi[2] = "IST d.o.o.: About us";
		naslovi[3] = "IST d.o.o.: Our products";
		naslovi[4] = "IST d.o.o.: Our references";
		naslovi[5] = "IST d.o.o.: Contact us";
	}
	else
	{
		naslovi[1] = "IST d.o.o.: Hauptseite";
		naslovi[2] = "IST d.o.o.: Über uns";
		naslovi[3] = "IST d.o.o.: Produkten";
		naslovi[4] = "IST d.o.o.: Referenzen";
		naslovi[5] = "IST d.o.o.: Kontakt";
	}
	
	if(page == 'naslovnica') stranica_id = 1;
	else if(page == 'o_nama') stranica_id = 2;
	else if(page == 'sto_proizvodimo') stranica_id = 3;
	else if(page == 'nase_reference') stranica_id = 4;
	else stranica_id = 5;
	
	document.title = naslovi[stranica_id];
}