// JavaScript Document


//prompt
function ask(message){
var t=confirm(message);
if(t)
	return true;
else
	return false;
}

//change style of element
function change_bg(id, bg_image){
document.getElementById(id).innerHTML="";
document.getElementById(id).style.minHeight="350px";
document.getElementById(id).style.background="url("+bg_image+") no-repeat";
}

//change text of element by id - pairs must be separated by "," - name/values separated by "+"
function changeHtml(string){
var idAndSrc=string.split(",");
var x;
for(x=0; x<=idAndSrc.length-1; x++){
var pair=idAndSrc[x].split("+");
document.getElementById(pair[0]).innerHTML=pair[1];
}
}

function change(string){
document.getElementById('r').innerHTML=string;	
}

//hide elements by id - string values must be separated by ","
function hide(string){
var ids = string.split(",");
var x;
for(x=0; x<=ids.length-1; x++){
document.getElementById(ids[x]).style.display="none";
}
}
//show elements by id - string values must be separated by ","
function show(string){
var ids = string.split(",");
var x;
for(x=0; x<=ids.length-1; x++){
document.getElementById(ids[x]).style.display="";
}
}

//rollover and out - name/value pair separated by "+", pairs separated by ","
function nav(string){
var idAndSrc=string.split(",");
var x;
for(x=0; x<=idAndSrc.length-1; x++){
var pair=idAndSrc[x].split("+");
document.getElementById(pair[0]).src="images/"+pair[1];
}
}

//popup
function popup(url, w, h){
window.open(url, '_blank', 'width='+w+', height='+h+', scrollbars=no');	
}