function nextTest() {
	
	var div  = new Array();
	var day  = new Array();
	
	var ON_DIV 			= '';
	var ON_DIV_NAME 	= '';
	var ON_DAY_NAME 	= '';
	var ON_DIV_NEW_NAME = '';
	var ON_DAY_INDEX	= '';
			
	 day[0] = document.getElementById('day-0');
	 day[1] = document.getElementById('day-1');
	 day[2] = document.getElementById('day-2');
	 day[3] = document.getElementById('day-3');
	 day[4] = document.getElementById('day-4');
	 	
	for(i=0;i<day.length;i++) {	
		var display = day[i].style.display;
		if (   display == "block"  ){
			 ON_DAY_INDEX = i;
			 break;  
		}
	}
	
	
	ON_DAY_NAME = 'day-'+ON_DAY_INDEX;
	mydev = document.getElementById(ON_DAY_NAME);
	
	for (i = 0; i < mydev.childNodes.length; i++ ){
		var display = mydev.childNodes[i].style.display;
		if (   display == "block"  ){
			 ON_DIV = mydev.childNodes[i].getAttribute('value');
			 break;  
		}
	}
	
	
	ON_DIV_NAME = parseInt( ON_DIV ) + 1 ; 
	
		
	if ( ON_DIV_NAME  <= 3 ){
		
		ON_DIV_NEW_NAME = 'div-'+ON_DIV_NAME;
		ON_DIV_OLD_NAME = 'div-'+ON_DIV;
		
		
		for (i = 0; i < mydev.childNodes.length; i++) {
	       if (mydev.childNodes[i].id == ON_DIV_NEW_NAME ) {
	        	mydev.childNodes[i].style.display = 'block';
	       }
	       
	      if (mydev.childNodes[i].id == ON_DIV_OLD_NAME ) {
	        	mydev.childNodes[i].style.display = 'none';
	       } 
		}	
		
		
		for ( j = 0 ; j < 4 ; j++  ){
			if ( j == ON_DIV_NAME ){
				titles1		= 'title-'+ON_DIV_NAME;
				titlesNew 	= document.getElementById(titles1).style.display = 'block';		
			} else {
				titles2		= 'title-'+j;
				titlesOld 	= document.getElementById(titles2).style.display = 'none';
			}
		}
			
		
		
	}
}



function prevTest() {
	
	var div  = new Array();
	var day  = new Array();
	
	var ON_DIV 			= '';
	var ON_DIV_NAME 	= '';
	var ON_DAY_NAME 	= '';
	var ON_DIV_NEW_NAME = '';
	var ON_DAY_INDEX	= '';
	

	 day[0] = document.getElementById('day-0');
	 day[1] = document.getElementById('day-1');
	 day[2] = document.getElementById('day-2');
	 day[3] = document.getElementById('day-3');
	 day[4] = document.getElementById('day-4');

	
	for(i=0;i<day.length;i++) {	
		var display = day[i].style.display;
		if (   display == "block"  ){
			 ON_DAY_INDEX = i;
			 break;
		}
	}
	
	
	ON_DAY_NAME = 'day-'+ON_DAY_INDEX;
	mydev = document.getElementById(ON_DAY_NAME);
	
	for (i = 0; i < mydev.childNodes.length; i++ ){
		var display = mydev.childNodes[i].style.display;
		if (   display == "block"  ){
			 ON_DIV = mydev.childNodes[i].getAttribute('value');
			 break;  
		}
	}
	
	
	ON_DIV_NAME = parseInt( ON_DIV ) - 1 ; 
	
	
	if ( ON_DIV_NAME  >= 0 ){
		
		mydev = document.getElementById(ON_DAY_NAME);
		
		ON_DIV_NEW_NAME = 'div-'+ON_DIV_NAME;
		ON_DIV_OLD_NAME = 'div-'+ON_DIV;
		
		for (i = 0; i < mydev.childNodes.length; i ++) {
	       if (mydev.childNodes[i].id == ON_DIV_NEW_NAME ) {
	        	mydev.childNodes[i].style.display = 'block';
	       }
	       
	      if (mydev.childNodes[i].id == ON_DIV_OLD_NAME ) {
	        	mydev.childNodes[i].style.display = 'none';
	       } 
		}	
		
		
		
		for ( j = 0 ; j < 4 ; j++  ){
			if ( j == ON_DIV_NAME ){
				titles1		= 'title-'+ON_DIV_NAME;
				titlesNew 	= document.getElementById(titles1).style.display = 'block';		
			} else {
				titles2		= 'title-'+j;
				titlesOld 	= document.getElementById(titles2).style.display = 'none';
			}
		}
		
		//titles1			= 'title-'+ON_DIV_NAME;
		//titles2			= 'title-'+ON_DIV;
	
		//titlesOld 	= document.getElementById(titles2).style.display = 'none';
		//titlesNew 	= document.getElementById(titles1).style.display = 'block';

	}
}

function changeValue(){
	var div  = [];
	newVal 		= document.getElementById('days').value ;
	
	ON_DAY_NAME = parseInt( newVal );
	
	 div[0] = document.getElementById('day-0');
	 div[1] = document.getElementById('day-1');
	 div[2] = document.getElementById('day-2');
	 div[3] = document.getElementById('day-3');
	 div[4] = document.getElementById('day-4');
	
	 for( i = 0 ; i < div.length ; i++ ) {
	 	if ( ON_DAY_NAME == i  ){
	 		divName = 'day-'+ON_DAY_NAME ; 
	 		titlesNew 	= document.getElementById(divName).style.display = 'block';
	 	} else {
	 		divName = 'day-'+i ; 
	 		titlesNew 	= document.getElementById(divName).style.display = 'none';
	 	}
	 }
}