function checkTxt(strField)
{
	var o = document.getElementById(strField);
	//alert(o.value);
	if(o.value=="")
	{
		o.className = "fail";
		bPass = false;
	}
	else {
		o.className = "pass";
	}
	//var a = document.getElementById("output");
	//a.innerHTML += o.id +" "+ o.className +" "+ bPass +"<br>";
}
function checkBxs(strField1,strField2)
{
	var o1 = document.getElementById(strField1);
	var o2 = document.getElementById(strField2);
	if(o1.checked==false)
	{	
		if(o2.checked==false){
			//neither checkbox has been used - total fail
			bPass = false;
			o1.className = "fail";
			o2.className = "fail";
		}
		else {
			//at least one checkbox has been filled - pass
			o1.className = "pass";
			o2.className = "pass";
		}
	}
	else {
		o1.className = "pass";
		o2.className = "pass";
	}
	//var a = document.getElementById("output");
	//a.innerHTML += o1.id +" "+ o1.className +" "+ bPass +"<br>";
	//a.innerHTML += o2.id +" "+ o2.className +" "+ bPass +"<br>";
}
function checkEml(strField)
{
	//check the email address
	var o = document.getElementById(strField);
	if(o.value=="")
	{
		o.className = "fail";
		bPass = false;
	}
	else {
		//field is filled, no we best check it for validity
		if(checkmail(o.value)==false){
			//its failed valuidation so highlight
			o.className = "fail";
			bPass = false;
			bFalseEmail=true;
		}
		else {
			//its passed validation
			o.className = "pass";
		}
	}
	//var a = document.getElementById("output");
	//a.innerHTML += o.id +" "+ o.className +" "+ bPass +"<br>";	
}
function checkmail(str)
{
	var at="@";
	var dot=".";
	var lat=str.indexOf(at);
	var lstr=str.length;
	var ldot=str.indexOf(dot);
	if (str.indexOf(at)==-1){
	   return false;
	}

	if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
	   return false;
	}

	if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
	    return false;
	}

	 if (str.indexOf(at,(lat+1))!=-1){
	    return false;
	 }

	 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
	    return false;
	 }

	 if (str.indexOf(dot,(lat+2))==-1){
	    return false;
	 }
	
	 if (str.indexOf(" ")!=-1){
	    return false;
	 }
	 return true;
}