function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_changeProp(objName,x,theProp,theValue) { //v6.0
  var obj = MM_findObj(objName);
  if (obj && (theProp.indexOf("style.")==-1 || obj.style)){
    if (theValue == true || theValue == false)
      eval("obj."+theProp+"="+theValue);
    else eval("obj."+theProp+"='"+theValue+"'");
  }
}

function resizeScreen() {  
  var header = MM_findObj('hd');
  var footer = MM_findObj('ft');
  var explorer = MM_findObj('scroller');
  var navigation = MM_findObj('yui-navigation');

  var arrayPageSize = getPageSize();
  var newHeight = arrayPageSize[3] - getElementHeight(header) - getElementHeight(footer);

  if(newHeight > 0) {  
     if(newHeight < 390) newHeight = 390; 
      navigation.style.height = newHeight + 'px'; // - 120 + 'px';
      explorer.style.height = newHeight + 'px'; // - 120 + 'px';      
  }

}

function getElementHeight(elem) {
    if(elem.clientHeight != null)
		return elem.clientHeight
	else if(elem.scrollHeight != null)
		return elem.srcollHeight
	else
		return elem.document.height;
}

function getElementWidth(elem) {
    if(elem.scrollWidth != null)
		return elem.scrollWidth
	else if(elem.clientWidth != null)
		return elem.clientWidth
	else
		return elem.document.width;
}


function getPageSize(){
    var xScroll, yScroll;

    if (window.innerHeight && window.scrollMaxY) {    
    xScroll = document.body.scrollWidth;
    yScroll = window.innerHeight + window.scrollMaxY;
    } else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
    //xScroll = document.body.scrollWidth;
    yScroll = document.body.scrollHeight;
    } else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
    xScroll = document.body.offsetWidth;
    yScroll = document.body.offsetHeight;
    }

    var windowWidth, windowHeight;
    if (self.innerHeight) {    // all except Explorer
    windowWidth = self.innerWidth;
    windowHeight = self.innerHeight;
    } else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
    windowWidth = document.documentElement.clientWidth;
    windowHeight = document.documentElement.clientHeight;
    } else if (document.body) { // other Explorers
    windowWidth = document.body.clientWidth;
    windowHeight = document.body.clientHeight;
    }    

    // for small pages with total height less then height of the viewport
    if (yScroll < windowHeight){
    pageHeight = windowHeight;
    } else { 
    pageHeight = yScroll;
    }

    // for small pages with total width less then width of the viewport
    if (xScroll < windowWidth) {    
    pageWidth = windowWidth;
    } else {
    pageWidth = xScroll;
    }

    arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight) ;
    return arrayPageSize;
}

var lt;

function switchTab(e) {

    t = document.getElementById(e);

    if(!t) {
      e = e.target || e.srcElement
    } else {
      e = t
    }

    if(!e) return;

    if (lt) lt.className = lt.className.replace('mi selected','mi');
    lt = e;
    if (e.className.indexOf('mi') != -1 && e.className.indexOf('selected') == -1) {
        e.className = e.className.replace('mi','mi selected');
    } else {
        e.className= e.className.replace('mi selected','mi');
    }
}

function initTabs() {

  hrefs = document.getElementsByTagName('a');

  for (i=0;i<hrefs.length-1;i++) { 
    if (hrefs[i].className.indexOf('mi') !=-1 && hrefs[i].className.indexOf('selected') != -1)
    lt = hrefs[i];
  }

  url = window.document.location.toString();

  if (url.indexOf("#") != -1) {
    tab = (url.substring(url.indexOf("#"),url.length)).toLowerCase().replace("#",'')

    if(tab) switchTab(tab + '_tab');
  }

}

window.onresize = resizeScreen;