var min=13;
var max=19;
var textSize=0;
function increaseFontSize() {
	var p  = document.getElementsByTagName('p');
	var a  = document.getElementsByTagName('a');
	var h1 = document.getElementsByTagName('h1');
	var h2 = document.getElementsByTagName('h2');
	var h3 = document.getElementsByTagName('h3');
	var li = document.getElementsByTagName('li');
	
	AlterSize(p,'up',13);
	AlterSize(a,'up',13);
	AlterSize(h1,'up',25);
	AlterSize(h2,'up',15);
	AlterSize(h3,'up',15);
	AlterSize(li,'up',15);
}

function AlterSize(p, adjust,defaultSize) {
	var center;
	for(i=0;i<p.length;i++) {
		var pi = p[i];
		var pid = pi.id;
		if(pid !='nosize') {
			if(pi.style.fontSize) {
				var s = parseInt(pi.style.fontSize.replace("px",""));
			} else {
				var s = defaultSize;
				if(pid=='Size1')
					s += 1;
				if(pid=='SizeN2')
					s += 1;
				if(pid=='SizeN3')
					s += 1;
				if(pid=='SizeN4')
					s += 1;
			}
			
			if(adjust=='up') {
				if(s < max && textSize<2)
					s += 2;
			} else {
				if(s > defaultSize ) {
					if(pid=='SizeN2') {
						s -= 5;
					} else if(pid=='SizeN3') {
						s -= 4;
					} else {
						s -= 2;
					}
				}
			}

			if((textSize<2 && adjust=='up') || (adjust !='up' && textSize > 0)) {
				pi.style.fontSize = s+"px";
			} else {
				if(pid=='Size1'|| pid=='SizeN1'|| pid=='SizeN2'|| pid=='SizeN3') {
					pi.style.fontSize = (defaultSize+1)+"px";
				} else {
					pi.style.fontSize = defaultSize+"px";
				}
			}
		}
	}
	
	if(adjust=='up' && textSize < 2) {
		if (textSize==0) {
			center = document.getElementById('MainDiv');
			if(center) {
				center.style.width = 1074+"px";
			}
			center = document.getElementById('TopSpace');
			if(center) {
				center.style.width = 1084+"px";
			}
			center = document.getElementById('FooterDiv');
			if(center) {
				center.style.width = 1084+"px";
			}
			center = document.getElementById('contentarea');
			if(center) {
				center.style.width = 1047+"px";
			}
			center = document.getElementById('main-nav');
			if(center) {	
				center.style.width = 1047+"px";
			}
			center = document.getElementById('header');
			if(center) {
				center.style.width = 890+"px";
			}
			center = document.getElementById('frontFeature');
			if(center) {
				center.style.width = 762+"px";
			}
			/*
			center = document.getElementById('rightnews');
			if(center) {
				center.style.height = 475+"px";
			}
			*/
		}
		textSize++; 
	} else if(adjust !='up' && textSize > 0){
		if(textSize==1) {
			center = document.getElementById('MainDiv');
			if(center) {
				center.style.width = 942+"px";
			}
			center = document.getElementById('TopSpace');
			if(center) {
				center.style.width = 952+"px";
			}
			center = document.getElementById('FooterDiv');
			if(center) {
				center.style.width = 952+"px";
			}
			center = document.getElementById('contentarea');
			if(center) {
				center.style.width = 915+"px";
			}
			center = document.getElementById('main-nav');
			if(center) {
				center.style.width = 913+"px";
			}
			center = document.getElementById('header');
			if(center) {
				center.style.width = 756+"px";
			}
			center = document.getElementById('frontFeature');
			if(center) {
				center.style.width = 627+"px";
			}
			/*
			center = document.getElementById('rightnews');
			if(center) {
				center.style.height = 255+"px";
			}
			*/
		}
		textSize--;
	}

}



function decreaseFontSize() {
	var p  = document.getElementsByTagName('p');
	var a  = document.getElementsByTagName('a');
	var h1 = document.getElementsByTagName('h1');
	var h2 = document.getElementsByTagName('h2');
	var h3 = document.getElementsByTagName('h3');
	var li = document.getElementsByTagName('li');
	
	AlterSize(li,'',13);
	AlterSize(p,'',13);
	AlterSize(a,'',13);
	AlterSize(h1,'',25);
	AlterSize(h2,'',15);
	AlterSize(h3,'',15);
}