var userAgent = navigator.userAgent.toLowerCase(); 
var browsermac = userAgent.indexOf('mac') != -1;
var browserwin = !browsermac;
var browserw3c = document.getElementById;
var browseriex = document.all;
var browserns4 = document.layers;


function fncOpenWindow(pageName,windowName,enableResize,windowWidth,windowHeight) {
   windowObj = window.open(pageName,windowName,"resizable=" + enableResize + ",width="+ windowWidth +",height="+ windowHeight);
   windowObj.self.focus();
}


function fncGetObj(name) {
	if(browserw3c){
		return document.getElementById(name);
	}else if(browseriex){
		return document.all[name];
	}else if(browserns4){
		return this.getObjNS4(document,name);
	}
}


function fncGetObjNS4(obj, name) {
	var d = obj.layers;
	var result,temp;
	for(var i=0; i<d.length; i++){
		if(d[i].id == name){
		 	result = d[i];
		}else if(d[i].layers.length){
			var temp = getObjNS4(d[i],name);
		}
		if(temp){
			result = temp;
		}
	}
	return result;
}

function fncFormValidateMail(strMail) {
	if(strMail.length < 6 | strMail.indexOf("@") == -1 | strMail.indexOf(".") == -1) {
		return false;
	} else {
		return true;
	}
}