function ChangeCSS(index) {
	
	switch(index)
	{
		case 0:
		mag.setActiveStyleSheet("small");
		break;
		
		case 1:
		mag.setActiveStyleSheet("medium");
		break;
		
		case 2:
		mag.setActiveStyleSheet("large");
		break;
	}
	
    
}

var cur = 0;

function IncreaseSize()
{
	if(cur < 2)
	{
		cur++;
		ChangeCSS(cur);
	}	
}

function DecreaseSize()
{
	if(cur > 0)
	{
		cur--;
		ChangeCSS(cur);
	}
	
}

window.onload = function(e) {
    var cookie = readCookie("style");
    var title = cookie ? cookie : getPreferredStyleSheet();
    mag.setActiveStyleSheet(title);
}

window.onunload = function(e) {
    var title = getActiveStyleSheet();
    createCookie("style", title, 365);
}