var ahrefcolor = "#006600";
var hrefcolor = '#808084';

function ChangeStyleColor(src, color, sufix) {
	document.getElementById(src.id + sufix).style.color = color;
}

function ChangeStyle(src, style){
	src.className = style;
}

function Highlight(element, style) {
	if(style == 'id') {
		ChangeStyle(document.getElementById(element), 'button_id_over');
	}
	else {
		ChangeStyle(document.getElementById(element), 'button_over');
	}
}

/**
 * DHTML email validation script. Courtesy of SmartWebby.com (http://www.smartwebby.com/dhtml/)
 */

function BadEmail() {
	alert('Zły adres e-mail');
}

function echeck(str) {
	var at="@";
	var dot=".";
	var lat=str.indexOf(at);
	var lstr=str.length;
	var ldot=str.indexOf(dot);
	
	if (str.indexOf(at)==-1){
	   BadEmail();
	   return false;
	}

	if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
	   BadEmail();
	   return false;
	}

	if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
	    BadEmail();
		return false;
	}

	 if (str.indexOf(at,(lat+1))!=-1){
		BadEmail();
		return false;
	 }

	 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		BadEmail();
		return false;
	 }

	 if (str.indexOf(dot,(lat+2))==-1){
		BadEmail();
		return false;
	 }
	
	 if (str.indexOf(" ")!=-1){
		BadEmail();
		return false;
	 }

	 return true;				
}

function ValidateForm(){
	var emailID = document.forms[0].email
	var name = document.forms[0].name
	var surname = document.forms[0].surname
	var company = document.forms[0].company
	var city = document.forms[0].city
	
	if ((name.value == null) || (surname.value == null) || (city.value == null) || (emailID.value == null) || (emailID.value == "")) {
		alert('Proszę uzupełnić pola formularza\nPole firma jest opcjonalne');
		emailID.focus();
		return false;
	}
	if (echeck(emailID.value) == false) {
		emailID.focus();
		return false;
	}
	return true;
}