function validate_name(t_str,t_min,t_errstr)
{
			var T_val
			var err 
			var reg
			var reg_str_num
			var T_S_val
			T_val = new String(t_str)
			err = ''

			if(T_val.length >= t_min)	
			{
				reg = new RegExp(' ','g') 
				T_S_val = T_val.replace(reg,'')
				
				if((T_S_val.length != T_val.length) || (T_S_val.length <=0 ))
				{
					err = 'enter valid name in ' +  t_errstr + '\n'
				}
				else
				{
						reg_str_num = new RegExp('[^A-Za-z]','g')
							if(new String(T_S_val.charAt(0)).search(reg_str_num) != -1)
								err = 'first letter should be charater ' + t_errstr + '\n'
								
						if(err == '')
						{						
							reg = new RegExp('[^0-9A-Za-z._-]','g')
							//reg = new RegExp('[^0-9A-Za-z]','g')
							if(T_S_val.search(reg) != -1)
								err = 'enter valid name in ' + t_errstr + '\n'
						}
				}
			}
			else
			{
				if (t_min == 1)
					err = 'enter valid name in ' + t_errstr + '(miniumum ' + t_min + ' character) \n'
				else
					err = 'enter valid name in ' + t_errstr + '(miniumum ' + t_min + ' valid characters) \n'
			}
		return err;		
}