/**************GENERAL JAVASCRIPT THAT WRITES THE NAVIGATION BAR*******/
var horPtr = 0 ;      					    

 barHorArray = new Array(horPtr +30); // create global barHorArray to store images for verical and horizontal bars

function BarClass(num,nicName,refFile,theName) {

  // Attributes:

  this.barNum=num; 

  this.barNicName= nicName;

  this.ref= refFile; 

  this.barTheName= theName;		//this.imgBarName="bar"+ num; 	//e.g. "bar2"	  

  //this.idcalss ="" ;  				

  this.display= display;  

}

function display() {   							

	  document.write('<li><a href="'); 

	  document.write(this.ref); 	

	  document.write('"  ');

	  document.write(this.idcalss); 

	  document.write(' >');

    document.write(this.barTheName); 

	  document.write('</a></li>');

}





function NavClass(len, visualtop, visualbot, classhomeid) { // NavClass Class declaration

	 this.navLen=len;

   this.topHtml = visualtop;

   this.botHtml = visualbot;

   this.classHome = classhomeid

	 //methods:

	 this.displayNavHor=displayNavHor;   //puts the navagation table frame  //and loops over all bar display each

}

//-----------------------------------------------------------------

// displayNavHor Method

//-----------------------------------------------------------------

function displayNavHor(barname) {  

   document.write(this.topHtml);

    var k;

	  for (k=horPtr +1 ; k <= this.navLen  ; k++)

	  {



       if  ( barHorArray[k].barNicName == barname ){

      				barHorArray[k].idcalss = ' id="current" ';                    

       }    

   	   barHorArray[k].display();

	 }

   document.write(this.botHtml);	

}


//function to clear the text in a text field on click.  the code should be <input name="q" id="query" type="text" value="Search our Site" onclick="clearText(this)" size="20" style="color:#1e1f76;">

function clearText(thefield) { 
 if (thefield.defaultValue == thefield.value)
  thefield.value = "" 
 else 
  thefield.value = thefield.defaultValue 
}