/*****************************************************************/
/*                                                               */
/*    Document developed by César Aguiar                         */
/*    20 Ago 08                                                  */
/*                                                               */
/*****************************************************************/


function overContact() {
document.getElementById('contact_box_left').style.backgroundImage = "url('img/bout_left.png')";
document.getElementById('contact_box_right').style.backgroundImage = "url('img/bout_right.png')";
}

function outContact() {
document.getElementById('contact_box_left').style.backgroundImage = "url('img/b_left.png')";
document.getElementById('contact_box_right').style.backgroundImage = "url('img/b_right.png')";
}

function novajanela(url) { window.open(url); }

var ns = (navigator.appName.indexOf("Netscape") != -1);
var d = document;
function JSFX_FloatDiv(id, sx, sy)
{
	var el=d.getElementById?d.getElementById(id):d.all?d.all[id]:d.layers[id];
	var px = document.layers ? "" : "px";
	window[id + "_obj"] = el;
	if(d.layers)el.style=el;
	el.cx = el.sx = sx;el.cy = el.sy = sy;
	el.sP=function(x,y){this.style.left=x+px;this.style.top=y+px;};

	el.floatIt=function()
	{
		var pX, pY;
		pX = (this.sx >= 0) ? 0 : ns ? innerWidth : 
		document.documentElement && document.documentElement.clientWidth ? 
		document.documentElement.clientWidth : document.body.clientWidth;
		pY = ns ? pageYOffset : document.documentElement && document.documentElement.scrollTop ? 
		document.documentElement.scrollTop : document.body.scrollTop;
		if(this.sy<0) 
		pY += ns ? innerHeight : document.documentElement && document.documentElement.clientHeight ? 
		document.documentElement.clientHeight : document.body.clientHeight;
		this.cx += (pX + this.sx - this.cx)/8;this.cy += (pY + this.sy - this.cy)/8;
		this.sP(this.cx, this.cy);
		setTimeout(this.id + "_obj.floatIt()", 25);
	}
	return el;
}


var scrollWin = {
	eidi : document.getElementById,
	dall : document.all,
	scrollLoop : false, 
	scrollInterval : null,
	currentBlock : null,
	getWindowHeight : function(){
	if(this.dall) return (document.documentElement.clientHeight) ? document.documentElement.clientHeight : document.body.clientHeight;
		else return window.innerHeight;
	},
	getscrollLeft : function(){
		if(this.dall) return (document.documentElement.scrollLeft) ? document.documentElement.scrollLeft : document.body.scrollLeft;
		else return window.pageXOffset;
	},
	getscrollTop : function(){
		if(this.dall) return (document.documentElement.scrollTop) ? document.documentElement.scrollTop : document.body.scrollTop;
		else return window.pageYOffset;
	},
	getElementYpos : function(el){
		var y = 0;
		while(el.offsetParent){
			y += el.offsetTop
			el = el.offsetParent;
		}
		return y;
	},
	scroll : function(name){
		if(!this.eidi){
			location.href = "#"+name;
			return;
		}
		if(this.scrollLoop){
			clearInterval(this.scrollInterval);
			this.scrollLoop = false;
			this.scrollInterval = null;
		}
		if(this.currentBlock != null) this.currentBlock.className = this.offClassName;
		this.currentBlock = document.getElementById(name);
		this.currentBlock.className = this.onClassName;
		var doc = document.getElementById(this.containerName);
		var documentHeight = this.getElementYpos(doc) + doc.offsetHeight;
		var windowHeight = this.getWindowHeight();
		var ypos = this.getElementYpos(this.currentBlock);
		if(ypos > documentHeight - windowHeight) ypos = documentHeight - windowHeight;
		this.scrollTo(0,ypos);
	},
	scrollTo : function(x,y){
		if(this.scrollLoop){
			var left = this.getscrollLeft();
			var top = this.getscrollTop();
			if(Math.abs(left-x) <= 1 && Math.abs(top-y) <= 1){
				window.scrollTo(x,y);
				clearInterval(this.scrollInterval);
				this.scrollLoop = false;
				this.scrollInterval = null;
			}else{
				window.scrollTo(left+(x-left)/2, top+(y-top)/2);
			}
		}else{
			this.scrollInterval = setInterval("scrollWin.scrollTo("+x+","+y+")",50);
			this.scrollLoop = true;
		}
	}
};

//validação
	function validarform() {
		var camponome = document.getElementById('camponome');
		var campoemail = document.getElementById('campoemail');
		var campomensagem = document.getElementById('campomensagem');
		
		if (checkmensagem(camponome, "Please, enter a valid name.")) { 
			if (checkmensagem(campoemail, "Please, enter a valid email address.")){
				if (checkemail(campoemail, "Please, enter a valid email address.")) {
					if(checkmensagem(campomensagem, "You forgot the message. ;)")) {
						return true;
					}
				}
			}
		}		
		
	return false;
	}
	
	function checkemail(elem, helperMsg){
	var emailExp = /^[\w\-\.\+]+\@[a-zA-Z0-9\.\-]+\.[a-zA-z0-9]{2,4}$/;
	if(elem.value.match(emailExp)){
		return true;
	}else{
		alert(helperMsg);
		elem.focus();
		return false;
	}
}

	function checkmensagem(elem, helperMsg){
		if (elem.value.length == 0){
			alert(helperMsg);
			elem.focus(); // set the focus to this input
			return false;
		}
		return true;
	}