var formblock;
var forminputs;

function prepare() {
formblock= document.getElementById('form_id');
if(formblock!=null) { forminputs = formblock.getElementsByTagName('input');}
}

function select_all(name, value) {
for (i = 0; i < forminputs.length; i++) {
// regex here to check name attribute
var regex = new RegExp(name, "i");
if (regex.test(forminputs[i].getAttribute('name'))) {
if (value == '1') {
forminputs[i].checked = true;
} else {
forminputs[i].checked = false;
}
}
}
}

function select_all_2(name, value) {
	formblock_2= document.getElementById('form_id2');
	if(formblock_2!=null) {
		forminputs_2 = formblock_2.getElementsByTagName('input');
	}
	for (i = 0; i < forminputs_2.length; i++) {
		// regex here to check name attribute
		var regex = new RegExp(name, "i");
		if (regex.test(forminputs_2[i].getAttribute('name'))) {
			if (value == '1') {
				forminputs_2[i].checked = true;
			} else {
				forminputs_2[i].checked = false;
			}
		}
	}
}
function select_all_3(name, value) {
	formblock_3= document.getElementById('form_id3');
	if(formblock_3!=null) {
		forminputs_3 = formblock_3.getElementsByTagName('input');
	}
	for (i = 0; i < forminputs_3.length; i++) {
		// regex here to check name attribute
		var regex = new RegExp(name, "i");
		if (regex.test(forminputs_3[i].getAttribute('name'))) {
			if (value == '1') {
				forminputs_3[i].checked = true;
			} else {
				forminputs_3[i].checked = false;
			}
		}
	}
}
function select_all_4(name, value) {
	formblock_4= document.getElementById('form_id4');
	if(formblock_4!=null) {
		forminputs_4 = formblock_4.getElementsByTagName('input');
	}
	for (i = 0; i < forminputs_4.length; i++) {
		// regex here to check name attribute
		var regex = new RegExp(name, "i");
		if (regex.test(forminputs_4[i].getAttribute('name'))) {
			if (value == '1') {
				forminputs_4[i].checked = true;
			} else {
				forminputs_4[i].checked = false;
			}
		}
	}
}

if (window.addEventListener) {
window.addEventListener("load", prepare, false);
} else if (window.attachEvent) {
window.attachEvent("onload", prepare)
} else if (document.getElementById) {
window.onload = prepare;
}

function kontrola(otazka){ 
    promenna = confirm(otazka); 
    if (promenna) { return true;}  else {return false;}
 }