var clientPC = navigator.userAgent.toLowerCase(); // Get client info
var clientVer = parseInt(navigator.appVersion); // Get browser version
var is_ie = ((clientPC.indexOf("msie") != -1) && (clientPC.indexOf("opera") == -1));

function addInputEmail() {
	var el;

	if (is_ie == true) {
		tdisplay_r = "block";
		tdisplay_d = "block";
	} else {
		tdisplay_r = "table-row";
		tdisplay_d = "table-cell";
	}
	
	for( var i = 2; i <= 4; i++ ) {
		el = document.getElementById('emailContainer' + i)
		if ( el != undefined) {
			if(el.style.display == "none" ) {
				el.style.display = tdisplay_r;
				if(i == 4) {
					document.getElementById('addEmailContainer').style.display = "none";
				}
				break;
			}
		}
	}
}