var navArray= new Array();

function initNav(){

	navArray[0] = {nav:document.getElementById('w1nav'), div:document.getElementById('week1Block')};
	navArray[1] = {nav:document.getElementById('w2nav'), div:document.getElementById('week2Block')};
	navArray[2] = {nav:document.getElementById('w3nav'), div:document.getElementById('week3Block')};
	navArray[3] = {nav:document.getElementById('w4nav'), div:document.getElementById('week4Block')};
	navArray[4] = {nav:document.getElementById('w5nav'), div:document.getElementById('week5Block')};
	navArray[5] = {nav:document.getElementById('w6nav'), div:document.getElementById('week6Block')};
	navArray[6] = {nav:document.getElementById('w7nav'), div:document.getElementById('week7Block')};
	navArray[7] = {nav:document.getElementById('w8nav'), div:document.getElementById('week8Block')};
	navArray[8] = {nav:document.getElementById('w9nav'), div:document.getElementById('week9Block')};	
	navArray[9] = {nav:document.getElementById('w10nav'), div:document.getElementById('week10Block')};
	navArray[10] = {nav:document.getElementById('w11nav'), div:document.getElementById('week11Block')};
	navArray[11] = {nav:document.getElementById('w12nav'), div:document.getElementById('week12Block')};
	document.getElementById('showAll').onclick=displayAllWeeks;

	for(i=0; i<navArray.length; i++){

	  if(navArray[i].nav){
	      
	      //alert(navArray[i])
	      //alert(i+" do exist" + 'w'+Number(i+1)+'nav')
	   
	      navArray[i].nav.onclick=function(d){
	         setBGColor(this.id);
	         var targ;
	         if (!d) var d = window.event;

	         if(d.target){
	           targ = d.target
	         }else if(d.srcElement){
	           targ = d.srcElement;
	         }
	         for(j=0; j<navArray.length; j++){
	            if(targ ==navArray[j].nav){
	            displayBlock(navArray[j].div.id)
	           }
	         }

	      }
	   }
	  
	}

}

function displayBlock(div){
	hideAllWeeks();
	document.getElementById(div).style.display="block";
}

function setBGColor(div){
	noBgColor();
	document.getElementById(div).className="currentWeek"
	
}


function displayAllWeeks(){

       for(i=0; i<navArray.length; i++){
       //alert(navArray[i].div.id)
	  if(navArray[i].div){
	    navArray[i].div.style.display="block";
	  }
        }	
}

function hideAllWeeks(){
       for(i=0; i<navArray.length; i++){
       //alert(navArray[i].div.id)
	  if(navArray[i].div){
	    navArray[i].div.style.display="none";
	  }
        }	
}

function noBgColor(){
       for(i=0; i<navArray.length; i++){
	  if(navArray[i].nav){
	    navArray[i].nav.className="notCurrentWeek";
	  }
        }
}


function useFullURL(week,nav){
	var loc = location.href
	// check for hash tag
	// This will tell me what the page link should be
	var txt=/#/g;
	txt.exec(loc)
	if(txt.lastIndex!=0){
	  displayBlock(loc.slice(txt.lastIndex)+'Block')
	}else{
	  displayBlock(week)
	  noBgColor()
	  document.getElementById(nav).className="currentWeek"
	}
}