//When mousing over a nav element
function showmenu(elmnt,elementID){
  document.getElementById(elementID).className = 'onMouseOverTab';

  //validate if the tab elmnt contains drop down menu to show
  if(document.getElementById(elmnt)){
     document.getElementById(elmnt).style.visibility="visible";
  }

  //Align drop down menu for last tab
  if(elmnt=='LASTTABID'){
          
      //Determine if last tab contains drop down menu, if it does, then adjust it to align to the right
    if(document.getElementById(elmnt) != null){
      var lastTabWidth = document.getElementById(elmnt).offsetWidth;
      var adjustValue  = determineOffSetLeftLastTab();
      document.getElementById(elmnt).style.left = 768 - lastTabWidth + (adjustValue) +'px';
    }  
    //alert(testing);
  }
}


function hidemenu(elmnt,elementID,typeBkg){
	var onMouseOutBkgType = ''; 

	document.getElementById(elementID).className = onMouseOutBkgType;

  		if(document.getElementById(elmnt)){
            		document.getElementById(elmnt).style.visibility="hidden";
  		}
}

//Determine adjusting layout for last tab
function determineOffSetLeftLastTab(){
      browser_type = navigator.appName;
      var adjustValue = 0;
      //IE, Opera
      if ( (browser_type == "Opera")) {
        adjustValue = 1;
      }
      //Mozilla, Netscape, Safari
      else if (browser_type == "Netscape") {
        adjustValue = 0;
      } else {
        adjustValue = 0;
      }
     return adjustValue;
}