function collapse(v) {

  e = document.getElementById(v);

  if (e.style.display == '') {
    e.style.display = 'none';
  } else {
    e.style.display = '';
  }
  return false;
}
//******************************************************************
function backgroundimage(){
 var viewportwidth;
 var viewportheight;
 
 // the more standards compliant browsers (mozilla/netscape/opera/IE7) use window.innerWidth and window.innerHeight
 
 if (typeof window.innerWidth != 'undefined')
 {
      viewportwidth = window.innerWidth,
      viewportheight = window.innerHeight
 }
 
// IE6 in standards compliant mode (i.e. with a valid doctype as the first line in the document)

 else if (typeof document.documentElement != 'undefined'
     && typeof document.documentElement.clientWidth !=
     'undefined' && document.documentElement.clientWidth != 0)
 {
       viewportwidth = document.documentElement.clientWidth,
       viewportheight = document.documentElement.clientHeight
 }
 
 // older versions of IE
 
 else
 {
       viewportwidth = document.getElementsByTagName('body')[0].clientWidth,
       viewportheight = document.getElementsByTagName('body')[0].clientHeight
 }
 

if (viewportwidth<1650){ 
    document.body.style.backgroundImage="url(templates/images/bck_empty.png)"; 
//    document.body.style.backgroundRepeat="repeat-y";
//    document.body.style.backgroundPosition= "center top";
//    document.body.style.backgroundAttachment="fixed";
//    document.body.style.backgroundImage="none"; 

}
//alert('<p>Your viewport width is '+viewportwidth+'x'+viewportheight+'</p>');
}
//******************************************************************
var tooltip=function(){
 var id = 'tt';
 var top = 3;
 var left = 3;
 var maxw = 300;
 var speed = 10;
 var timer = 20;
 var endalpha = 95;
 var alpha = 0;
 var tt,t,c,b,h;
 var ie = document.all ? true : false;
 return{
  show:function(v,w){
   if(tt == null){
    tt = document.createElement('div');
    tt.setAttribute('id',id);
    t = document.createElement('div');
    t.setAttribute('id',id + 'top');
    c = document.createElement('div');
    c.setAttribute('id',id + 'cont');
    b = document.createElement('div');
    b.setAttribute('id',id + 'bot');
    tt.appendChild(t);
    tt.appendChild(c);
    tt.appendChild(b);
    document.body.appendChild(tt);
    tt.style.opacity = 0;
    tt.style.filter = 'alpha(opacity=0)';
    document.onmousemove = this.pos;
   }
   tt.style.display = 'block';
   c.innerHTML = v;
   tt.style.width = w ? w + 'px' : 'auto';
   if(!w && ie){
    t.style.display = 'none';
    b.style.display = 'none';
    tt.style.width = tt.offsetWidth;
    t.style.display = 'block';
    b.style.display = 'block';
   }
  if(tt.offsetWidth > maxw){tt.style.width = maxw + 'px'}
  h = parseInt(tt.offsetHeight) + top;
  clearInterval(tt.timer);
  tt.timer = setInterval(function(){tooltip.fade(1)},timer);
  },
  pos:function(e){
   var u = ie ? event.clientY + document.documentElement.scrollTop : e.pageY;
   var l = ie ? event.clientX + document.documentElement.scrollLeft : e.pageX;
   tt.style.top = (u - h) + 'px';
   tt.style.left = (l + left) + 'px';
  },
  fade:function(d){
   var a = alpha;
   if((a != endalpha && d == 1) || (a != 0 && d == -1)){
    var i = speed;
   if(endalpha - a < speed && d == 1){
    i = endalpha - a;
   }else if(alpha < speed && d == -1){
     i = a;
   }
   alpha = a + (i * d);
   tt.style.opacity = alpha * .01;
   tt.style.filter = 'alpha(opacity=' + alpha + ')';
  }else{
    clearInterval(tt.timer);
     if(d == -1){tt.style.display = 'none'}
  }
 },
 hide:function(){
  clearInterval(tt.timer);
   tt.timer = setInterval(function(){tooltip.fade(-1)},timer);
  }
 };
}();