function checkLogin(text)
{
	var i;
	var ch;
	var ret=true;
	
	for (i=0; text && i < text.length; i++) 
	{
		ch = text.charAt(i);
		
		if(ch==" " || ch=="\t" || ch=="`" || ch=="~" || ch=="!" || ch=="@" ||
			ch=="#" || ch=="$" || ch=="%" || ch=="^" || ch=="&" || ch=="*" ||
			ch=="(" || ch==")" || ch=="[" || ch=="]" || ch=="{" || ch=="}" ||
			ch=="|" || ch=="\\" || ch=="/" || ch=="," || ch==";" || ch==":" ||
			ch=="?" || ch=="'" || ch=="<" || ch==">" || ch=="+" || ch=="=")
		{
				ret=false;
				break;
		}
	}
	if(ret==false)
	{
		var mesg="";
		mesg="Spaces and special characters are not allowed in the name, please try again.";
		alert(mesg);
	}

	return ret;
}