function st(){
var colord = window.screen.colorDepth;
var res = window.screen.width + "x" + window.screen.height;
document.write("<img src=\"http://www.kovalovsky.com/st/java_stat.php?js=yes&amp;color="+colord+"&amp;res="+res+"\" width=\"1\" height=\"1\" alt=\"\" />"); }
st();


function kontrolapredodoslanim(){
	if (window.RegExp) { 
		re = new RegExp("^[_a-zA-Z0-9\.\-]+@[_a-zA-Z0-9\.\-]+\.[a-zA-Z]{2,4}$"); 
		if (!re.test(document.getElementById("email").value)) { 
			window.alert("E-mailová adresa nemá správny formát!"); 
			return false; 
		} 
	}
}

function kontrolapredodoslanimEN(){
	if (window.RegExp) { 
		re = new RegExp("^[_a-zA-Z0-9\.\-]+@[_a-zA-Z0-9\.\-]+\.[a-zA-Z]{2,4}$"); 
		if (!re.test(document.getElementById("email").value)) { 
			window.alert("E-mail adress is incorrect!"); 
			return false; 
		} 
	}
}