function evalPwd(pw)
{
var counter= 0;
var minlength = 4;

if (pw.length >= minlength)
{
counter = counter + 1;
}
if (pw.match(/[A-Z]/))
{
counter = counter + 2;
}
if (pw.match(/[a-z]/))
{
counter = counter + 1;
}
if (pw.match(/[0-9]/))
{
counter = counter + 2;
}
if (pw.match(/[^A-Za-z0-9]/))
{
counter = counter + 2;
}
if (counter <= 2)
{
		document.getElementById("weak").className = "red";
		document.getElementById("medium").className = "nrm";
		document.getElementById("strong").className = "nrm";
}
else if (counter <= 5)
{
		document.getElementById("weak").className = "yellow";
		document.getElementById("medium").className = "yellow";
		document.getElementById("strong").className = "nrm";

}
else if (counter <= 6)
{
		document.getElementById("weak").className = "green";
		document.getElementById("medium").className = "green";
		document.getElementById("strong").className = "green";
}
}