//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';

    } 

  }

}





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;

}