// JavaScript Document



//=======================

//  FONT RESIZING

//=======================



// 1. Cookie Function

function setCookie (name, value) {

	document.cookie = name + "=" + escape(value);

}



// 2. Get Cookie

function getCookie(name) {

	var search = name + "=";

	var retstr = "";

	var offset = 0;

	var end = 0;

	if (document.cookie.length > 0) {

		offset = document.cookie.indexOf(search);

		if (offset != -1) {

			offset += search.length;

			end = document.cookie.indexOf(";", offset);

			if (end == -1) {

				end = document.cookie.length;

				retstr = unescape(document.cookie.substring(offset, end));

			}

		}

	}

	return(retstr)

}



//3. Change font-size

function changeClass (obj,action) {

	for (var i=0;i<document.getElementsByTagName(obj).length;++i) {

		switch (document.getElementsByTagName(obj)[i].className) {

			case "resize10" : var objClass = (action == 'up')? 'resize11':'resize10'; break;

			case "resize11" : var objClass = (action == 'up')? 'resize12':'resize10'; break;

			case "resize12" : var objClass = (action == 'up')? 'resize13':'resize11'; break;

			case "resize13" : var objClass = (action == 'up')? 'resize14':'resize12'; break;

			case "resize14" : var objClass = (action == 'up')? 'resize14':'resize13'; break;

			

			default : var objClass = document.getElementsByTagName(obj)[i].className;

			

		}	

	document.getElementsByTagName(obj)[i].className = objClass;

	}

	for (var i=0;i<document.getElementsByTagName('td').length;++i) {

		switch (document.getElementsByTagName('td')[i].className) {

			case "resize10" : var objClass = (action == 'up')? 'resize11':'resize10'; break;

			case "resize11" : var objClass = (action == 'up')? 'resize12':'resize10'; break;

			case "resize12" : var objClass = (action == 'up')? 'resize13':'resize11'; break;

			case "resize13" : var objClass = (action == 'up')? 'resize14':'resize12'; break;

			case "resize14" : var objClass = (action == 'up')? 'resize14':'resize13'; break;

			

			default : var objClass = document.getElementsByTagName('td')[i].className;

			

		}	

	document.getElementsByTagName('td')[i].className = objClass;

	}	

	for (var i=0;i<document.getElementsByTagName('a').length;++i) {

		switch (document.getElementsByTagName('a')[i].className) {

			case "resize10" : var objClass = (action == 'up')? 'resize11':'resize10'; break;

			case "resize11" : var objClass = (action == 'up')? 'resize12':'resize10'; break;

			case "resize12" : var objClass = (action == 'up')? 'resize13':'resize11'; break;

			case "resize13" : var objClass = (action == 'up')? 'resize14':'resize12'; break;

			case "resize14" : var objClass = (action == 'up')? 'resize14':'resize13'; break;

			

			default : var objClass = document.getElementsByTagName('a')[i].className;

			

		}

	document.getElementsByTagName('a')[i].className = objClass;

	}

}



//4. If cookie is loaded, change font-size prior

function changeClassOnLoad() {

	var action;

	var clicks = new Number();

	var value = (getCookie("zoomtext") == "" || getCookie("zoomtext") == 'undefined')? new Number(11) : new Number(getCookie("zoomtext"));



	if (value == "10") {

		action = 'down';

		clicks = 1;

	}



	if (value == "11") {

		action = 'up';

		clicks = 0;

	}

	

	if (value == "12") {

		action = 'up';

		clicks = 1;

	}

	

	if (value == "13") {

		action = 'up';

		clicks = 2;

	}

	

	if (value == "14") {

		action = 'up';

		clicks = 3;

	}

	

	if (value != "11") {

		for (var j=0;j<clicks;j++) {

			changeClass('div',action)

		}

	} 

}



//5. Change on plus or minus click

function changeClassClick (obj,action) {

	var value = (getCookie("zoomtext") == "" || getCookie("zoomtext") == 'undefined')? new Number(11) : new Number(getCookie("zoomtext"));

	if (action == 'down' && value > 10 && value <= 14) {

		//if (value == 14) {

		//	value = 12;

		//} else {


			value = value - 1;

		//}

	} else if (action == 'up' && value >= 10 && value < 14) {

		//if (value == 12) {

		//	value = 14;

		//} else {

			value = value + 1;

		//}

	}

	setCookie("zoomtext", value);

	changeClass('div',action)

}



//=======================

//  IMAGEM RANDOMICA

//=======================

function RandomImg_home() {  // imagem randomica da home
	total = 06;
	num = String(Math.round(Math.random()*(total-1))+1);
	img = '<img src="_img/home/i_0'+num+'.jpg" width="710" height="220" alt="Vocalis">';
	return img;
}


function RandomImg_sobre() {  // imagem randomica do sobre-nos
	total = 02;
	num = String(Math.round(Math.random()*(total-1))+1);
	img = '<img src="../../_img/instituicao/sobre_nos/i_0'+num+'.jpg" width="750" height="220" alt="IFCE">';
	return img;
}




function RandomImg_esportes() {  // imagem randomica do esporte
	total = 04;
	num = String(Math.round(Math.random()*(total-1))+1);
	img = '<img src="../_img/esportes/i_0'+num+'.jpg" width="750" height="220" alt="Esportes">';
	return img;
}


//=======================

//  EMAIL NO SPAM

//=======================

function nospam(which) {
	
	if (which == 1) {
		part1 = "faleconosco";
	} else if (which == 2) {
		part1 = "teste";
	} else if (which == 3) {
		part1 = "jobs";
	}
	part2 = "@";
	part3 = "vocalis.com.br"
	place = (part1 + part2 + part3);
	window.location = ("mailto:"+place);
}