//No HTML: <a href="#" onclick="changeFontSize(-1);">A-</a> <a href="#" onclick="changeFontSize(1);">A+</a>


var tamfonte = 0;
var notpageload = 0;

function initialFontSize()
{
	var tam = readCookie("tamfonte");
	//alert(tam);
	if(tam != null)
	{
		tamfonte = parseInt(tam);
		changeFontSize(tamfonte);
	}
}

function changeFontSize(inc)
{  	
	achei = 0;
	tags = new Array(); 
	tags[0] = "p";
	tags[1] = "div";
	tags[2] = "span";
	tags[3] = "h1";
	tags[4] = "h2";
	tags[5] = "h3";
	tags[6] = "h4";
	tags[7] = "select";
	tags[8] = "a";
	tags[9] = "h5";
	tags[10] = "li";
	tags[11] = "input";
	tags[12] = "textarea";
	tags[13] = "body";
	tags[14] = "td";
	tags[14] = "strong";
	for(i=0; i<tags.length; i++)
	{
		var p = document.getElementsByTagName(tags[i]);  
		for(n=0; n<p.length; n++) 
		{  
			if(p[n].style.fontSize)
			{    
				var size = parseInt(p[n].style.fontSize.replace("px", ""));   
			} 
			else 
			{  
				
				if(i==4) var size = 16;
				else if(i==5) var size = 14;
				else if(i==6) var size = 16;
				else if(i==3) var size = 16;
				else var size = 12;  
				
			}  
			p[n].style.fontSize = size+inc + 'px';  
		}	
	}
	if(notpageload)
	{
		createCookie("tamfonte", tamfonte+inc, 0);
		tamfonte = tamfonte + inc;
	}
	notpageload = 1;
}

function change_background(tag,classe){
	tag.className = classe;
}

var win = null;
function pop(mypage,myname,w,h,scroll){
	LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
	TopPosition = (screen.height) ? (screen.height-h)/2 : 0;
	settings ='height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+',resizable=no'
	win = window.open(mypage,myname,settings)
}

function getScrollingPosition(){
	var position = [0, 0];
	if (typeof window.pageYOffset != 'undefined'){
		position = [window.pageXOffset,	window.pageYOffset];
	}
	else if (typeof document.documentElement.scrollTop != 'undefined' && document.documentElement.scrollTop > 0){
		position = [document.documentElement.scrollLeft, document.documentElement.scrollTop];
	}
	else if (typeof document.body.scrollTop != 'undefined'){
		position = [document.body.scrollLeft, document.body.scrollTop];
	}
	return position;
}

function changeTab(obj){
	var url = obj.href;
	var scrollpos = getScrollingPosition();
	var scrollposx = scrollpos[0];
	var scrollposy = scrollpos[1];
	url += "&scrollposx=" + scrollposx + "&scrollposy=" + scrollposy;
	window.location.href = url;
}

function setScrollPosition(x,y){
	window.scrollTo(x,y);
}