function flip($elementID){
	current = document.getElementById($elementID).src;
	if(current.substr(-8)=="down.png"){
		document.getElementById($elementID).src='../images/'+$elementID+'.png';
	}else{

		document.getElementById($elementID).src='../images/'+$elementID+'_down.png';
	}
}

function show(elementID){
	hide();
	document.getElementById(elementID).style.visibility='visible';
	document.getElementById(elementID).style.display='block';
	
}

function hide(){
	document.getElementById('tutoring').style.visibility='hidden';
	document.getElementById('tutoring').style.display='none';
	document.getElementById('contact').style.visibility='hidden';
	document.getElementById('contact').style.display='none';
	document.getElementById('howitworks').style.visibility='hidden';
	document.getElementById('howitworks').style.display='none';
	document.getElementById('students').style.visibility='hidden';
	document.getElementById('students').style.display='none';

}


function show_image(){
	var randomPhoto=Math.floor(Math.random()*1);
	randomPhoto = randomPhoto+1;
	document.getElementById('header_image').src='../images/photo_'+randomPhoto+'.jpg';
		
}

function swap(hide, show){
	
		document.getElementById(hide).style.visibility='hidden';
		document.getElementById(hide).style.display='none';
		document.getElementById(show).style.visibility='visible';
		document.getElementById(show).style.display='block';
}


function gen(number){
	if(number==2){
		if($i2==false){
				generate_wysiwyg('text_area_2');
				$i2=true;
	}	}
	if(number==3){
		if($i3==false){
				generate_wysiwyg('text_area_3');
				$i3=true;
	}	}
	if(number==4){
		if($i4==false){
				generate_wysiwyg('text_area_4');
				$i4=true;
	}	}
	
}

var $i2 = false;
var $i3 = false;
var $i4 = false;