/*******************************************************************************
 * ������ encode(word) ���ܣ� ����HTML ��ڲ��� word ����ֵ��
 * ��html��ʽ�����ύ��html�ı�
 ******************************************************************************/
function encode(word) {

	illegalchar = new Array('<', '&', '"', ">", ' ');
	var result = "", result1 = "", temp = "";
	for (var j = 0; j < illegalchar.length; j++) {
		// if (word.indexOf(illegalchar[j])!=-1){
		// for(int i=0;i<word.length;i++)
		while (word.indexOf(illegalchar[j]) != -1) {
			var k = word.indexOf(illegalchar[j])
			resultFirst = word.substring(0, k)
			// document.write("ww"+k)
			var c = word.charAt(k)
			switch (c) {
				case '<' :
					temp = "&lt;";
					break;
				case '&' :
					temp = "��";

					break;
				case '>' :
					temp = "&gt;";
					break;
				case '"' :
					temp = "&quot;";
					break;
				case ' ' :
					temp = "&nbsp;";
					break;
				// default : continue;
			}
			result = result + resultFirst + temp
			word = word.substring(k + 1, word.length)
			// document.write(result+"0"+temp+"0"+word.substring(0,k))
			// result=result+temp+word.substring(0,k)

			// word=word.substring(k+1,word.length)

			// document.write(u)
			// document.write(word+u)
			// document.write(word)
		}
		// result=result+word
		// document.write(word)
		// result=result+word.substring(0,k)
	}
	// document.write("www"+word)
	result = result + word
	// document.write(result)
	if (result.length == 0)
		return word;

	// document.write(result)
	return result;
}