function validchars(fldname,sts,msg)
	{		
		var fldlen = document.getElementById(fldname).value.length;
		var chksts = sts;
		if(chksts == "genchars")
		{
			var ichars = "!@$#%^&*()+=-[]\\\':,./{}|\":<>_?";
		}
		else if(chksts == "mailchars")
		{
			var ichars = "!$#%^&*()+=[]\\\':,/{}|\":<>?";
		}		
		else if(chksts == "sexchars")
		{
			var ichars = "!@$#%^&*()+=-[]\\\':,./{}|\":<>?abcdeghijklnopqrstuvwxyzABCDEGHIJKLNOPQRSTUVWXYZ0123456789";
		}
		else if(chksts == "phchars")
		{
			var ichars = "!@$#%^&*+=[]\\\':./{}|\":<>?abcdeghijklnopqrstuvwxyzABCDEGHIJKLNOPQRSTUVWXYZ";
		}		
		for(var i=0;i < document.getElementById(fldname).value.length;i++)
		{
			if(ichars.indexOf(document.getElementById(fldname).value.charAt(i)) != -1)
			{
				alert(msg + " contain invalid characters" + ichars);
				document.getElementById(fldname).focus();
				return false;
			}	
		}
	}