function keyCombo() {

var str1 = document.getElementById("list1");
var str2 = document.getElementById("list2");
var str3 = document.getElementById("list3");

document.getElementById('resolt').value = "";

arraystr1 = str1.value.split("\n");
arraystr2 = str2.value.split("\n");
arraystr3 = str3.value.split("\n");

resoltarray = new Array();

for(i in arraystr1){
		for(j in arraystr2){
			for(k in arraystr3){
				arraystr1[i] = arraystr1[i].split("\r");
				arraystr1[i] = arraystr1[i].join('');
				arraystr2[j] = arraystr2[j].split("\r");
				arraystr2[j] = arraystr2[j].join('');
				arraystr3[k] = arraystr3[k].split("\r");
				arraystr3[k] = arraystr3[k].join('');
				resoltarray.push(arraystr1[i] +" "+ arraystr2[j] + " "+ arraystr3[k]);
				}
		}
}

for (var i = 0; i < resoltarray.length; i ++) {
document.getElementById('resolt').value = document.getElementById('resolt').value + resoltarray[i] + "\n";
}

}