function GE(objid){ return document.getElementById(objid); }

function newImage(arg) { if (document.images) { rslt = new Image(); rslt.src = arg; return rslt; } }

function changeImages() {
	if (document.images && (preloadFlag == true)) for (var i=0; i<changeImages.arguments.length; i+=2) document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		menu1_over = newImage("_img/menu/1-o.gif");
		menu2_over = newImage("_img/menu/2-o.gif");
		menu3_over = newImage("_img/menu/3-o.gif");
		menu4_over = newImage("_img/menu/4-o.gif");
		menu5_over = newImage("_img/menu/5-o.gif");
		menu6_over = newImage("_img/menu/6-o.gif");
		menu7_over = newImage("_img/menu/7-o.gif");
		menu8_over = newImage("_img/menu/8-o.gif");
		preloadFlag = true;
	}
}

function clearForm(id){ GE(id).reset(); }
function submitForm(id){ GE(id).submit(); }


function hideFlash(){
	GE("flash").style.display = 'none';
}

function showSite(){
	GE("contentTable").style.display = 'none';
	//alert("showSite");
}

function getVideoId()
{
	var arrVideos = new Array(1,3); // 1 - engenheiro (e-mail), 2 - moda (e-mail), 3 - moda (telefone)
	alert(arrVideos.length);
	var nRandom = Math.round( Math.random() * (arrVideos.length-1) );
	return nRandom;
}

function PageQuery(q) 
{
	if(q.length > 1) this.q = q.substring(1, q.length);
	else this.q = null;
	this.keyValuePairs = new Array();
	if(q) {
		for(var i=0; i < this.q.split("&").length; i++) {
			this.keyValuePairs[i] = this.q.split("&")[i];
		}
	}
	this.getKeyValuePairs = function() { return this.keyValuePairs; }
	this.getValue = function(s) {
		for(var j=0; j < this.keyValuePairs.length; j++) {
			if(this.keyValuePairs[j].split("=")[0] == s)
				return this.keyValuePairs[j].split("=")[1];
		}
		return "";
	}
	this.getParameters = function() {
		var a = new Array(this.getLength());
		for(var j=0; j < this.keyValuePairs.length; j++) {
			a[j] = this.keyValuePairs[j].split("=")[0];
		}
		return a;
	}
	this.getLength = function() { return this.keyValuePairs.length; }	
}

function getQueryString(key){
	var page = new PageQuery(window.location.search); 
	return unescape(page.getValue(key)); 
}