var timer;
var ghwcontent;
var ghalpha=0;

function f_clientWidth() {
	return biggest (window.innerWidth ? window.innerWidth : 0,
		document.documentElement ? document.documentElement.clientWidth : 0,
		document.body ? document.body.clientWidth : 0);
}
function f_clientHeight() {
	return smallest (window.innerHeight ? window.innerHeight : 0,
		document.documentElement ? document.documentElement.clientHeight : 0,
		document.body ? document.body.clientHeight : 0);
}
function f_scrollLeft() {
	return smallest (window.pageXOffset ? window.pageXOffset : 0,
		document.documentElement ? document.documentElement.scrollLeft : 0,
		document.body ? document.body.scrollLeft : 0);
}
function f_scrollTop() {
	return smallest (window.pageYOffset ? window.pageYOffset : 0,
		document.documentElement ? document.documentElement.scrollTop : 0,
		document.body ? document.body.scrollTop : 0);
}
function biggest(v1, v2, v3) { // return largest number
	var v4 = v1 > v2 ? v1 : v2;
	var v5 = v4 > v3 ? v4 : v3;
	return v5;
}

function smallest(n_win, n_docel, n_body) { // return smallest number
	var n_result = n_win ? n_win : 0;
	if (n_docel && (!n_result || (n_result > n_docel)))
		n_result = n_docel;
	return n_body && (!n_result || (n_result > n_body)) ? n_body : n_result;
}


function ghwgrow(sector)
{
	ghwid=document.getElementById(sector);
	theheight=parseInt(ghwid.offsetHeight);
     if (ghalpha < 100) {
     	ghwid.style.height = (ghalpha*2.5)+'px';
//     	ghwid.style.top = parseInt(midY-(theheight/2))+'px';
		setOpacity(ghwid,ghalpha/100);
		ghalpha = ghalpha+5;
	 	}
	 else {
     	ghwid.style.height = '250px';
		setOpacity(ghwid,1);
        clearInterval(timer);
      }
}
function setOpacity(element,level) {
  element.style.opacity = level;
  element.style.MozOpacity = level;
  element.style.KhtmlOpacity = level;
}
function setOpacityIE7(element,level) {
  element.style.opacity = level;
  element.style.MozOpacity = level;
  element.style.KhtmlOpacity = level;
  element.style.filter = "alpha(opacity=" + (level * 100) + ");";
}
function ghwshrink(sector)
{
	ghwid=document.getElementById(sector);
	theheight=parseInt(ghwid.offsetHeight);

     if (ghalpha >= 5) {
		setOpacity(ghwid,ghalpha/100);
		ghalpha = ghalpha-5;
	 	}
	 else {
		ghwid.style.visibility="hidden";
        clearInterval(timer);
      }
}

function clearPopups() {
	popid=document.getElementById('paycat_popup');
	setOpacity(popid,0);
	popid.style.visibility="hidden";
	popid=document.getElementById('make_popup');
	setOpacity(popid,0);
	popid.style.visibility="hidden";
	popid=document.getElementById('model_popup');
	setOpacity(popid,0);
	popid.style.visibility="hidden";
	popid=document.getElementById('network_popup');
	setOpacity(popid,0);
	popid.style.visibility="hidden";
	popid=document.getElementById('gift_popup');
	setOpacity(popid,0);
	popid.style.visibility="hidden";
	popid=document.getElementById('price_popup');
	setOpacity(popid,0);
	popid.style.visibility="hidden";
}

function ghw(id) {

	midX=f_scrollLeft()+(f_clientWidth()/2);
	midY=f_scrollTop()+(f_clientHeight()/2);

	ghwid=document.getElementById(id);
	ghwid.style.left=midX-320+'px';
	setOpacity(ghwid,0);
	ghwid.style.visibility="visible";

    timer = setInterval("ghwgrow('"+id+"')", 20);
}

function ghwclose(id)
{
      timer = setInterval("ghwshrink('"+id+"')",3);
}

function SelectPaycat() {
    clearPopups();
    ghw('paycat_popup');
}
function SelectMake() {
    clearPopups();
    ghw('make_popup');
}
function SelectModel() {
    clearPopups();
    ghw('model_popup');
}
function SelectNetwork() {
    clearPopups();
    ghw("network_popup");
}
function SelectGift() {
    clearPopups();
    ghw('gift_popup');
}
function SelectPrice() {
    clearPopups();
    ghw('price_popup');
}
function SelectAccMake() {
    clearPopups();
    ghw('accmake_popup');
}
function SelectAccModel() {
    clearPopups();
    ghw('accmodel_popup');
}
function SelectAccCat() {
    clearPopups();
    ghw('acccat_popup');
}
function fonesure() {
    ghw('fonesure');
}