var timer;
var ghwcontent;
var ghalpha=0;
var viewportwidth;
var viewportheight;

function winsize() {
 if (typeof window.innerWidth != 'undefined') {
      viewportwidth = window.innerWidth,
      viewportheight = window.innerHeight
 }
 else if (typeof document.documentElement != 'undefined' && typeof document.documentElement.clientWidth != 'undefined' && document.documentElement.clientWidth != 0) { // IE6 in standards compliant mode (i.e. with a valid doctype as the first line in the document)
       viewportwidth = document.documentElement.clientWidth,
       viewportheight = document.documentElement.clientHeight
 }
 else { // older versions of IE
       viewportwidth = document.getElementsByTagName('body')[0].clientWidth,
       viewportheight = document.getElementsByTagName('body')[0].clientHeight
 }
}
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";
	popid=document.getElementById('accmake_popup');
	setOpacity(popid,0);
	popid.style.visibility="hidden";
	popid=document.getElementById('accmodel_popup');
	setOpacity(popid,0);
	popid.style.visibility="hidden";
	popid=document.getElementById('acccat_popup');
	setOpacity(popid,0);
	popid.style.visibility="hidden";
}

function ghw(id) {

	ghwid=document.getElementById(id);
	setOpacity(ghwid,0);
	ghwid.style.visibility="visible";
        winsize();
        newx=((viewportwidth-1000)/2 + 200);
        ghwid.style.left = newx+'px';

    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 SelectFeature() {
    clearPopups();
    ghw('features_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');
}