var highlight_on_color = "#FFE1E1";
	var highlight_offleft_color = "#FFFFFF";
	var highlight_offright_color = "#FFFFFF";
	var focus_field = "";
	var errorMsg = "";

	function trim(stringToTrim){ 
		return stringToTrim.replace(/^\s+|\s+$/g,"");
	}
	
	function readOnlyCheckBox() {
		return false;
	}

	function isblank(s) {
		for(var i =0; i<trim(s).length;i++) {
			var c = s.charAt(i);
			if((c!=' ') && (c!='\n') && (c!='\t')) return false;
		}
		return true;
	}

	function isblank1(s)
	{
		for(var i =0; i<s.length;i++)
		{
			var c = s.charAt(i);
			if((c!=' ') && (c!='\n') && (c!='\t')) return false;
		}
		return true;
	}
	
	function isEmail(thefield) {
		var email_format = /^[A-Za-z0-9]+([0-9a-zA-Z_\.\-]+)*@[A-Za-z0-9]+([0-9a-zA-Z_\.\-]+)+([\.])+([0-9a-zA-Z_\.\-]+)+[A-Za-z0-9]$/; 
		if(!email_format.test(thefield.value)) {
			return false;
		} else {
			return true;
		}
	}

	function isNumeric(thefield) {
		var numeric_format = /^[0-9]+$/;
		if(!numeric_format.test(thefield.value)) {
			return false;
		} else {	
			return true;
		}
	}

	function handlefield_exceed(thefield, left_td, right_td, exceed, msg) {	
		if ((thefield.value.length > exceed)) {
			document.getElementById(left_td).style.backgroundColor= highlight_on_color;
			document.getElementById(right_td).style.backgroundColor= highlight_on_color;
			if(errorMsg!="") errorMsg += '<br>';
				errorMsg += msg;
			if(!focus_field)
				focus_field = thefield;
		}
		else 
		{	document.getElementById(left_td).style.backgroundColor= highlight_offleft_color;
			document.getElementById(right_td).style.backgroundColor= highlight_offright_color;
		}
	}
	
	function handlefield_standard(thefield, msg)
	{	if (isblank(thefield.value))
		{	
			if(errorMsg!="") errorMsg += '<br>';
				errorMsg += msg;
		}
	}
	
	function handlefield(thefield, left_td, right_td, msg)
	{	
		if (isblank(thefield.value))
		{	document.getElementById(left_td).style.backgroundColor= highlight_on_color;
			document.getElementById(right_td).style.backgroundColor= highlight_on_color;
			if(errorMsg!="") errorMsg += '<br>';
				errorMsg += msg;
			if(!focus_field)
				focus_field = thefield;
		}
		else 
		{	
			document.getElementById(left_td).style.backgroundColor= highlight_offleft_color;
			document.getElementById(right_td).style.backgroundColor= highlight_offright_color;
		}
	}

	function handlefieldFormValue(thefield, left_td, right_td, msg,maxvalue) {
		if (thefield.value == maxvalue)
		{	document.getElementById(left_td).style.backgroundColor= highlight_on_color;
			document.getElementById(right_td).style.backgroundColor= highlight_on_color;
			if(errorMsg!="") errorMsg += '<br>';
				errorMsg += msg;
			if(!focus_field)
				focus_field = thefield;
		}
		else 
		{	document.getElementById(left_td).style.backgroundColor= highlight_offleft_color;
			document.getElementById(right_td).style.backgroundColor= highlight_offright_color;
		}
	}

	function handlemultifields(thefield, thefield2, thefield3, left_td, right_td, msg)
	{	if (isblank(thefield.value) && isblank(thefield2.value) && isblank(thefield3.value))
		{	document.getElementById(left_td).style.backgroundColor= highlight_on_color;
			document.getElementById(right_td).style.backgroundColor= highlight_on_color;
			if(errorMsg!="") errorMsg += '<br>';
				errorMsg += msg;
			if(!focus_field)
				focus_field = thefield;
		}
		else 
		{	document.getElementById(left_td).style.backgroundColor= highlight_offleft_color;
			document.getElementById(right_td).style.backgroundColor= highlight_offright_color;
		}
	}

	function handlefield_radio(thefield, left_td, right_td, msg)
	{
	var noofunckecked = 0;
	
		for (var i = 0; i < thefield.length; i++) {
		   if (thefield[i].checked == false){
		   		noofunckecked = 1 + noofunckecked;
		   	}
		}
	
		if (noofunckecked == thefield.length){
			if(errorMsg!="") errorMsg += '<br>';
				errorMsg += msg;
			document.getElementById(left_td).style.backgroundColor= highlight_on_color;
			document.getElementById(right_td).style.backgroundColor= highlight_on_color;
		}
	
		else{
			document.getElementById(left_td).style.backgroundColor= highlight_offleft_color;
			document.getElementById(right_td).style.backgroundColor= highlight_offright_color;
		}
	
	}

	function handlefield_select(thefield, left_td, right_td, msg)
	{	if (thefield.selectedIndex==0)
		{	document.getElementById(left_td).style.backgroundColor= highlight_on_color;
			document.getElementById(right_td).style.backgroundColor= highlight_on_color;
			if(errorMsg!="") errorMsg += '<br>';
				errorMsg += msg;
			if(!focus_field)
				focus_field = thefield;
		}
		else 
		{	document.getElementById(left_td).style.backgroundColor= highlight_offleft_color;
			document.getElementById(right_td).style.backgroundColor= highlight_offright_color;
		}
	}

	function handlefield_email(thefield, left_td, right_td, msg)
	{	var email_format = /^[A-Za-z0-9]+([0-9a-zA-Z_\.\-]+)*@[A-Za-z0-9]+([0-9a-zA-Z_\.\-]+)+([\.])+([0-9a-zA-Z_\.\-]+)+[A-Za-z0-9]$/; 
		if(!email_format.test(thefield.value))
		{	document.getElementById(left_td).style.backgroundColor= highlight_on_color;
			document.getElementById(right_td).style.backgroundColor= highlight_on_color;
			if(errorMsg!="") errorMsg += '<br>';
				errorMsg += msg;
			if(!focus_field)
				focus_field = thefield;
		}
		else 
		{	document.getElementById(left_td).style.backgroundColor= highlight_offleft_color;
			document.getElementById(right_td).style.backgroundColor= highlight_offright_color;
		}
	}

	function unhandlefield_email(left_td, right_td)
	{	document.getElementById(left_td).style.backgroundColor= highlight_offleft_color;
		document.getElementById(right_td).style.backgroundColor= highlight_offright_color;	
	}

	function handlefield_compare(thefield, thefield2, left_td, right_td, msg)
	{	var numeric_format = /^[0-9]+$/;
	
		if(thefield.value!="" && thefield2.value!="")
		{	if(numeric_format.test(thefield.value)  && numeric_format.test(thefield2.value) && parseInt(thefield2.value) < parseInt(thefield.value))
			{	document.getElementById(left_td).style.backgroundColor= highlight_on_color;
				document.getElementById(right_td).style.backgroundColor= highlight_on_color;
				if(errorMsg!="") errorMsg += '<br>';
					errorMsg += msg;
				if(!focus_field)
					focus_field = thefield;
			}
			else 
			{	document.getElementById(left_td).style.backgroundColor= highlight_offleft_color;
				document.getElementById(right_td).style.backgroundColor= highlight_offright_color;
			}
		}
		else 
		{	document.getElementById(left_td).style.backgroundColor= highlight_offleft_color;
			document.getElementById(right_td).style.backgroundColor= highlight_offright_color;
		}	
	}
	
	function handlefield_numeric_basic(thefield, digit_from, digit_to, msg)
	{	var numeric_format = /^[0-9]+$/;
		if(thefield.value!="")
		{	if(!numeric_format.test(thefield.value) || thefield.value.length < digit_from || thefield.value.length > digit_to )
			{	
				if(errorMsg!="") errorMsg += '<br>';
					errorMsg += msg;
			//	if(!focus_field)
			//		focus_field = thefield;
			}
		}
	}

	function handlefield_numeric(thefield, digit_from, digit_to, left_td, right_td, msg)
	{	var numeric_format = /^[0-9]+$/;
		if(thefield.value!="")
		{	if(!numeric_format.test(thefield.value) || thefield.value.length < digit_from || thefield.value.length > digit_to )
			{	document.getElementById(left_td).style.backgroundColor= highlight_on_color;
				document.getElementById(right_td).style.backgroundColor= highlight_on_color;
				if(errorMsg!="") errorMsg += '<br>';
					errorMsg += msg;
				if(!focus_field)
					focus_field = thefield;
			}
			else 
			{	document.getElementById(left_td).style.backgroundColor= highlight_offleft_color;
				document.getElementById(right_td).style.backgroundColor= highlight_offright_color;
			}
		}
		else 
		{	document.getElementById(left_td).style.backgroundColor= highlight_offleft_color;
			document.getElementById(right_td).style.backgroundColor= highlight_offright_color;
		}	
	}
	function unhandlefield_numeric(left_td, right_td)
	{	document.getElementById(left_td).style.backgroundColor= highlight_offleft_color;
		document.getElementById(right_td).style.backgroundColor= highlight_offright_color;	
	}
	function handlefield_date(field_year,field_month,field_day,left_td,right_td,msg)
	{	if (!valid_date(field_year.value,field_month.value,field_day.value))
		{	document.getElementById(left_td).style.backgroundColor= highlight_on_color;
			document.getElementById(right_td).style.backgroundColor= highlight_on_color;
			if(errorMsg!="") errorMsg += '<br>';
				errorMsg += msg;
			if(!focus_field)
				focus_field = field_year;
		}
		else 
		{	document.getElementById(left_td).style.backgroundColor= highlight_offleft_color;
			document.getElementById(right_td).style.backgroundColor= highlight_offright_color;
		}
	
	}
	function valid_date(input_yr,input_mth,input_date)
	{	if (input_yr%4!=0)
		{	if (input_mth==2 && input_date > 28)
			{	//alert(input_mth + "月份只有28日");
				return false
			}
		}
		else
		{	if (input_mth==2 && input_date > 29)
			{	 //alert(input_mth + "月份只有29日");
				return false
			}			
		}
		if(input_mth ==4||input_mth ==6||input_mth ==9||input_mth ==11)
	    {	if (input_date>30)
	         {   //alert(input_mth + "月份只有30日");
				return false
			}			
		}
		return true;
	}
	
	function compare_two_date(start_date, end_date) 
	{
		var larger = end_date >= start_date;
		return larger;  
	}
	
	function handlefield_compare_date(field_year1,field_month1,field_day1,left_td1,right_td1,field_year2,field_month2,field_day2,left_td2,right_td2,msg)
	{	
		var start_date = new Date();		
		var end_date = new Date();				
	
		if (!isblank(field_year1.value) && !isblank(field_month1.value) && !isblank(field_day1.value) 
			&& !isblank(field_year2.value) && !isblank(field_month2.value) && !isblank(field_day2.value)) 
		{
			start_date.setFullYear(field_year1.value , field_month1.value - 1, field_day1.value);
			end_date.setFullYear(field_year2.value , field_month2.value - 1, field_day2.value);
	
			if (!compare_two_date(start_date, end_date))
			{	
				document.getElementById(left_td1).style.backgroundColor= highlight_on_color;
				document.getElementById(right_td1).style.backgroundColor= highlight_on_color;
	
				document.getElementById(left_td2).style.backgroundColor= highlight_on_color;
				document.getElementById(right_td2).style.backgroundColor= highlight_on_color;
	
				if(errorMsg!="") errorMsg += '<br>';
					errorMsg += msg;
				if(!focus_field)
						focus_field = field_year1;
			}
			else 
			{	
				document.getElementById(left_td1).style.backgroundColor= highlight_offleft_color;
				document.getElementById(right_td1).style.backgroundColor= highlight_offright_color;
	
				document.getElementById(left_td2).style.backgroundColor= highlight_offleft_color;
				document.getElementById(right_td2).style.backgroundColor= highlight_offright_color;
			}
		} 
	}
	
	function lengthValid(thefield){
		
		if(thefield.length >= 6 && thefield.length <= 10){
			return true;
		}else{
			return false;
		}
	
	}
	
	function check_password(thefield, left_td, right_td, msg, msg2){
	var errorcode = 0;
	//var numeric_format = /^[a-zA-Z0-9]/;
	var space_format = /[\s\b]/;
	var totalerrorMsg = "";
		if (isblank(thefield.value))
		{
			totalerrorMsg = msg;
			errorcode = 1;
	
		}
		else if (space_format.test(thefield.value) || thefield.value.length<6 || thefield.value.length>20)
		{
			totalerrorMsg = msg2;
			errorcode = 1;
		}
	
		if (errorcode == 1)
		{
			document.getElementById(left_td).style.backgroundColor= highlight_on_color;
			document.getElementById(right_td).style.backgroundColor= highlight_on_color;
			if(errorMsg!="") errorMsg += '<br>';
			errorMsg += totalerrorMsg;
			if(!focus_field)
			focus_field = thefield;
			return false;
		}
		else 
		{	document.getElementById(left_td).style.backgroundColor= highlight_offleft_color;
			document.getElementById(right_td).style.backgroundColor= highlight_offright_color;
			return true;
		}
	
	}
	
	function compare_password(thefield, thefield2, left_td, right_td, left_td2, right_td2, msg)
	{	
	
	
		if(thefield.value != thefield2.value)
		{	document.getElementById(left_td).style.backgroundColor= highlight_on_color;
			document.getElementById(right_td).style.backgroundColor= highlight_on_color;
			document.getElementById(left_td2).style.backgroundColor= highlight_on_color;
			document.getElementById(right_td2).style.backgroundColor= highlight_on_color;
			if(errorMsg!="") errorMsg += '<br>';
				errorMsg += msg;
			if(!focus_field)
				focus_field = thefield;
		}
		else 
		{	document.getElementById(left_td).style.backgroundColor= highlight_offleft_color;
			document.getElementById(right_td).style.backgroundColor= highlight_offright_color;
			document.getElementById(left_td2).style.backgroundColor= highlight_offleft_color;
			document.getElementById(right_td2).style.backgroundColor= highlight_offright_color;
		}
	}
	
	function highlight_field(thefield, status, left_td, right_td, msg){
		if (status=='Y'){
			if (msg!=""){
				if(errorMsg!="") errorMsg += '<br>';
				errorMsg += msg;
			}
			document.getElementById(left_td).style.backgroundColor= highlight_on_color;
			document.getElementById(right_td).style.backgroundColor= highlight_on_color;
		}
		else{
			document.getElementById(left_td).style.backgroundColor= highlight_offleft_color;
			document.getElementById(right_td).style.backgroundColor= highlight_offright_color;
		}
	}
	function handlefield_same_select(thefield1, thefield2, left_td1, right_td1, left_td2, right_td2, msg)
	{	
		if (thefield1.selectedIndex!=0 && thefield2.selectedIndex!=0) 
		{
			if (thefield1.selectedIndex==thefield2.selectedIndex)
			{	
				document.getElementById(left_td1).style.backgroundColor= highlight_on_color;
				document.getElementById(right_td1).style.backgroundColor= highlight_on_color;
	
				document.getElementById(left_td2).style.backgroundColor= highlight_on_color;
				document.getElementById(right_td2).style.backgroundColor= highlight_on_color;
	
				if(errorMsg!="") errorMsg += '<br>';
					errorMsg += msg;
				if(!focus_field)
						focus_field = thefield1;
			}
			else 
			{	
				document.getElementById(left_td1).style.backgroundColor= highlight_offleft_color;
				document.getElementById(right_td1).style.backgroundColor= highlight_offright_color;
	
				document.getElementById(left_td2).style.backgroundColor= highlight_offleft_color;
				document.getElementById(right_td2).style.backgroundColor= highlight_offright_color;
			}
		}
	}
	
	
	function handlefield_listbox(thefield, left_td, right_td, msg)
	{
			var listboxselected = 0;
			for(i=0; i<thefield.options.length; i++) {
				if(thefield.options[i].selected){
					listboxselected++;
				}
			}

			if (listboxselected == 0)
				{	
					document.getElementById(left_td).style.backgroundColor= highlight_on_color;
					document.getElementById(right_td).style.backgroundColor= highlight_on_color;
					if(errorMsg!="") errorMsg += '<br>';
						errorMsg += msg;
					if(!focus_field)
						focus_field = thefield;
				}
			else 
				{	
					document.getElementById(left_td).style.backgroundColor= highlight_offleft_color;
					document.getElementById(right_td).style.backgroundColor= highlight_offright_color;
				}
	}
	
	function show_msg(msg,focus_field,msg_layer)
	{	var outError = "";
		outError += '<table width="100%" border="0" cellpadding="4" cellspacing="0" class="subtitle">';
		outError += '  <tr>';
		outError += '    <td bgcolor="#FFE1E1" class="errormessage"><table width="100%" border="0" cellpadding="0" cellspacing="0" class="errormessage">';
		outError += '        <tr>';
		outError += '          <td width="50" valign="top"><img src="../images/instantpost/error_car.gif" width="42" height="43"></td>';
		outError += '          <td valign="middle"><font color="#FF0000">';
		outError += msg ;
		outError += '            </font></td>';
		outError += '        </tr>';
		outError += '    </table></td>';
		outError += '  </tr>';
		outError += '</table><br>';
		msg_layer.innerHTML = outError;
		document.location.hash = "#";
		if(focus_field)
			focus_field.focus();
	}	
	
	function show_msg_small(msg,focus_field,msg_layer)
	{	var outError = "";
		outError += '<table width="100%" border="0" cellpadding="4" cellspacing="0" class="subtitle">';
		outError += '  <tr>';
		outError += '    <td bgcolor="#FFE1E1" class="errormessage"><table width="100%" border="0" cellpadding="0" cellspacing="0" class="errormessage">';
		outError += '        <tr>';
		outError += '          <td width="50" valign="top"><img src="../images/instantpost/error_car.gif" width="42" height="43"></td>';
		outError += '          <td valign="middle"><font color="#FF0000">';
		outError += msg ;
		outError += '            </font></td>';
		outError += '        </tr>';
		outError += '    </table></td>';
		outError += '  </tr>';
		outError += '</table><br>';
		msg_layer.innerHTML = outError;
		document.location.hash = "#";
		if(focus_field)
			focus_field.focus();
	}	
	
	
	function show_msg_home(msg,focus_field,msg_layer)
	{	var outError = "";
		outError += '<font size="1" color="#FF0000">';
		outError += msg ;
		outError += '</font><br>';
		msg_layer.innerHTML = outError;
		document.location.hash = "#";
		if(focus_field)
			focus_field.focus();
	}	

	function apply(apply_type, job_ref_nbr, source) {
		try {
			document.theForm.action = "/search/apply_now.asp?apply_type=" + apply_type + "&job_ref_nbr=" + job_ref_nbr + "&source=" + source
			document.theForm.target = "newWin";
			document.theForm.submit();			
		} catch(e) {
			return;
		}
		try {
			if( document.theForm.target=="newWin" ||(typeof(opener.document) != 'undefined' && typeof(opener.document) != 'unknown' && typeof(opener.name) != 'undefined' && typeof(opener.name) != 'unknown'))
				parent.close();
		} catch(e) {
			return;
		}
	}