function zoom2()
{
font4.style.textDecoration ='';
font3.style.textDecoration ='';
font2.style.textDecoration ='';
	var content = document.getElementById("content");
	document.body.style.zoom = "1.1";
	document.body.style.overflow = "auto";
	font4.style.textDecoration ='underline';
	content.style.overflow = "auto";
}	
function zoom0()
{
font4.style.textDecoration ='';
font3.style.textDecoration ='';
font2.style.textDecoration ='';
	var content = document.getElementById("content");
	document.body.style.zoom = "1";
	document.body.style.overflow = "auto";
	font3.style.textDecoration ='underline';
	content.style.overflow = "auto";
}	
function zoom1()
{
font4.style.textDecoration ='';
font3.style.textDecoration ='';
font2.style.textDecoration ='';
	var content = document.getElementById("content");
	document.body.style.zoom = "0.9";
	document.body.style.overflow = "auto";
	font2.style.textDecoration ='underline';
	content.style.overflow = "auto";
}	 

function changeFontSize(size) {

	var newsize = '';

	document.getElementById('small').className = '';
	document.getElementById('medium').className = '';
	document.getElementById('large').className = '';

	document.getElementById(size).className = 'selected';

	switch (size) {
	
		case 'small':
			newsize = '12px';
		  break;
	
		case 'medium':
			newsize = '14px';
		  break;
		  
		case 'large':
			newsize = '16px';
		  break;
	
	
	}

	ajaxCall('changefont.php?size='+size, "handleResponse(http_request)");

	body = document.getElementsByTagName('body')
	body[0].style.fontSize = newsize;
}