window.onload=setupEvents;
function setupEvents(evnt) {
document.someForm.onsubmit=validateField;
}
function validateField(evnt) {
var rgEx = new RegExp(document.someForm.text1.value);
var OK = rgEx.exec(document.someForm.text2.value);
if (!OK) {
alert("Not a match");
} else {
alert("The Pattern matched!");
}
return false;
}
Regular Expression: