function ChkFloat(suObj)
	{
		var inStr = ".1234567890";
		var su = suObj.value;


		if(su.charAt(0) == "." || su.charAt(su.length-1) == ".")
		{
			alert("À߸ø ÀÔ·ÂÇϼ̽À´Ï´Ù. ´Ù½Ã ÀÔ·ÂÇϼ¼¿ä!");
			suObj.value = "";
			suObj.focus();
		}
		else
		{
			for(var i=0; i < su.length; i++)
			{
				if(inStr.indexOf(su.charAt(i)) == -1)
				{
					alert("À߸ø ÀÔ·ÂÇϼ̽À´Ï´Ù. ´Ù½Ã ÀÔ·ÂÇϼ¼¿ä!");
					suObj.value = "";
					suObj.focus();
					break;
				}
			}
		}

	}

	function DownHomework(hw_date, homework_type, course_id)
	{
		window.open("/contents/school/my_homework.asp?hw_date="+ hw_date +"&homework_type="+ homework_type +"&course_id="+ course_id,"","width=0, height=0, left=10000,top=10000");
	}

	function DownFile(file)
	{
		window.open("/xpg_lib/filedownload.asp?file_url=/pds/homework&file_nm="+ file,"","width=0, height=0, left=10000,top=10000");
	}


	function ViewTotalDiary(process_id, course_id, app_num)
	{
		window.open("/contents/school/talk/totalDiaryView.asp?process_id="+ process_id +"&course_id="+ course_id +"&app_num=" + app_num,"","width=600, height=800, left=0,top=0, statusbar=no, scrollbars=no");
	}

	function ViewFood(num)
	{
		window.open("/contents/school/recom_food.asp?num="+ num,"","width=300, height=300, left=0,top=0, statusbar=no, scrollbars=no");
	}

	function AddKcal(key)
	{
		window.open("/contents/school/caloriePop.asp?key="+ key,"","width=600, height=720, left=0,top=0, statusbar=no, scrollbars=no");
	}