function checkEmail(email)
{
	var length = email.length;
	var index1 = email.indexOf("@");
	var index2 = email.lastIndexOf(".");
	
	if(index1<=0)
		return false;
	else if(index2<=0)
			return false;
		 else if(index1>=length)
		 		return false;
		 	  else if(index2>=length)
		 	  		 return false;
		 	  	   else
		 	  	     return true;
}

function checkNumeric(val)
{
	var chars = "0123456789-";
	for(i=0;i<val.length;i++)
	{
		for(j=0;j<chars.length;j++)
		{
			if(val.charAt(i)==chars.charAt(j))
				break;
		}
		if(j>=chars.length)
			return false;
	}
	return true;
}