function get_element(elm){
	if(document.all){
		if(document.all[elm]) var el=document.all[elm];
		else return false;
	}	
	else if(document.getElementById){
		if(document.getElementById(elm)) var el=document.getElementById(elm);
		else return false;
	}
	return el;
}
function preload(url){
	var im = new Image();
	im.src=url;
}


function head_fade(){
	setTimeout("fade_in_head()",8000);
	setTimeout("fade_out_head()",16000);
	setTimeout("head_fade()",16000);
}

var fade_speed=80;
var ims_head=new Array("images/header/im1.jpg","images/header/im2.jpg","images/header/im3.jpg","images/header/im4.jpg","images/header/im5.jpg","images/header/im6.jpg","images/header/im7.jpg","images/header/im8.jpg");
var im_current=1;
var f_step=0;
function fade_in_head(){
	f_step++;
	if(f_step>25){
		f_step=25;
		var im1=get_element("head_bottom");
		im_current++;
		if(im_current==ims_head.length) im_current=0;
		im1.src=ims_head[im_current];
	}
	else{
		var im2=get_element("head_top");
		im2.className="fade_"+f_step;
		setTimeout("fade_in_head()",fade_speed);
	}
}
function fade_out_head(){
	f_step--;
	if(f_step<0){
		f_step=0;
		var im1=get_element("head_top");
		im_current++;
		if(im_current==ims_head.length) im_current=0;
		im1.src=ims_head[im_current];
	}
	else{
		var im2=get_element("head_top");
		im2.className="fade_"+f_step;
		setTimeout("fade_out_head()",fade_speed);
	}
}
//Special select boxes--------------------------------
function sb_open(el){
	var sb=get_element("dd_"+el);
	sb.style.display="block";
}
function sb_close(el){
	var sb=get_element("dd_"+el);
	sb.style.display="none";
}

function set_sel_text(el,val,change){
	var sel=get_element(el);
	sel.value=val;
	sb_close(el);
	if(change) set_dd_list();
}
//--------------------------------------------------