// Highlight table row 
var lastSelection = null;

function highLightRow() {
	if(window.event.srcElement.tagName != "SPAN") {
		var row = getRow(window.event.srcElement);		
		
		if(lastSelection != null) 
			changeRow(lastSelection, "deselect");

		changeRow(row, "select");
		lastSelection = row;
	} 
	window.event.cancelBubble = true;	
} 

function deSelectRow() {
	if(lastSelection != null) 
		changeRow(lastSelection, "deselect");
		
	lastSelection = null;	
}

function getRow(element) {
	if(element.tagName == "TR")
		return element;
	else 
		return getRow(element.parentElement);
}

function changeRow(row, option) {
	var rowColor = "#FFFFFF";
	if(option == "select")
		rowColor = "#EBEBEB";
	if(row.tagName == "TR")
		row.style.backgroundColor = rowColor;
}



// Validate Form, PD
function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_validateForm() { //v4.0
  var i,p,q,nm,test,num,min,max,errors='',args=MM_validateForm.arguments;
  for (i=0; i<(args.length-2); i+=3) { test=args[i+2]; val=MM_findObj(args[i]);
    if (val) { nm=val.name; if ((val=val.value)!="") {
      if (test.indexOf('isEmail')!=-1) { p=val.indexOf('@');
        if (p<1 || p==(val.length-1)) errors+='- '+nm+' måste innehålla en e-post adress.\n';
      } else if (test!='R') {
        if (isNaN(val)) errors+='- '+nm+' måste innehålla ett nummer.\n';
        if (test.indexOf('inRange') != -1) { p=test.indexOf(':');
          min=test.substring(8,p); max=test.substring(p+1);
          if (val<min || max<val) errors+='- '+nm+' måste innehålla ett nummer mellan '+min+' och '+max+'.\n';
    } } } else if (test.charAt(0) == 'R') errors += '- '+nm+' är obligatorisk.\n'; }
  } if (errors) alert('Följande fel uppstod:\n'+errors);
  document.MM_returnValue = (errors == '');
}

// Submit form, Nicke
function SubmitForm(form, target) {
	form.action=target;
	form.submit();
}

// openPopUp , Nicke
function openPopUp(url) { 
			Param = "SCROLLBARS=no,RESIZABLE=no,TOOLBAR=no,STATUS=no,MENUBAR=no, WIDTH=600,HEIGHT=400";
			Param += ",TOP=" + String(window.screen.Height/2 - 150);
			Param += ",LEFT=" + String(window.screen.Width/2 - 200);

			window.open(url, "PopUp", Param);
}

function Calendar(sTxtBoxName) {
	windowDatePicker = window.open("/sve/climatedata/calendar.asp?txtbox=" + sTxtBoxName,"dp","toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=0,width=180,height=145,left=375,top=350");
	windowDatePicker.focus();
	self.name="rightframe";
}

/*function parseDate(fromDate, toDate) {
	if (doDateCheck(fromDate, toDate) == true)
	{
		if (chkdate(fromDate) == false) {
			alert("fel -FRÅN- datum. Försök igen!");
			return false;
		}
		if (chkdate(toDate) == false) {
			alert("fel -TILL- datum. Försök igen!");
			return false;
		}
		return true;
	}
	return false;
}*/
function chkdate(objName) {
	//var strDatestyle = "US"; //United States date style
	var strDatestyle = "EU";  //European date style
	var strDate;
	var strDateArray;
	var strDay;
	var strMonth;
	var strYear;
	var intday;
	var intMonth;
	var intYear;
	var booFound = false;
	var datefield = objName;
	var strSeparatorArray = new Array("-"," ","/",".");
	var intElementNr;
	var err = 0;
	var strMonthArray = new Array(12);
	strMonthArray[0] = "Jan";
	strMonthArray[1] = "Feb";
	strMonthArray[2] = "Mar";
	strMonthArray[3] = "Apr";
	strMonthArray[4] = "May";
	strMonthArray[5] = "Jun";
	strMonthArray[6] = "Jul";
	strMonthArray[7] = "Aug";
	strMonthArray[8] = "Sep";
	strMonthArray[9] = "Oct";
	strMonthArray[10] = "Nov";
	strMonthArray[11] = "Dec";
	strDate = datefield.value;
	if (strDate.length < 1) {
		return true;
	}
	for (intElementNr = 0; intElementNr < strSeparatorArray.length; intElementNr++) {
		if (strDate.indexOf(strSeparatorArray[intElementNr]) != -1) {
			strDateArray = strDate.split(strSeparatorArray[intElementNr]);
			if (strDateArray.length != 3) {
				err = 1;
				return false;
			} else {
				strDay = strDateArray[0];
				strMonth = strDateArray[1];
				strYear = strDateArray[2];
			}
			booFound = true;
		}
	}
	if (booFound == false) {
		if (strDate.length>5) {
			strDay = strDate.substr(0, 2);
			strMonth = strDate.substr(2, 2);
			strYear = strDate.substr(4);
	   }
	}
	if (strYear.length == 2) {
		strYear = '20' + strYear;
	}
	// US style
	if (strDatestyle == "US") {
		strTemp = strDay;
		strDay = strMonth;
		strMonth = strTemp;
	}
	intday = parseInt(strDay, 10);
	if (isNaN(intday)) {
		err = 2;
		return false;
	}
	intMonth = parseInt(strMonth, 10);
	if (isNaN(intMonth)) {
		for (i = 0;i<12;i++) {
			if (strMonth.toUpperCase() == strMonthArray[i].toUpperCase()) {
				intMonth = i+1;
				strMonth = strMonthArray[i];
				i = 12;
	 		}
		}
		if (isNaN(intMonth)) {
			err = 3;
			return false;
	   }
	}
	intYear = parseInt(strYear, 10);
	if (isNaN(intYear)) {
		err = 4;
		return false;
	}
	if (intMonth>12 || intMonth<1) {
		err = 5;
		return false;
	}
	if ((intMonth == 1 || intMonth == 3 || intMonth == 5 || intMonth == 7 || intMonth == 8 || intMonth == 10 || intMonth == 12) && (intday > 31 || intday < 1)) {
		err = 6;
		return false;
	}
	if ((intMonth == 4 || intMonth == 6 || intMonth == 9 || intMonth == 11) && (intday > 30 || intday < 1)) {
		err = 7;
		return false;
	}
	if (intMonth == 2) {
		if (intday < 1) {
			err = 8;
			return false;
		}
		if (LeapYear(intYear) == true) {
			if (intday > 29) {
				err = 9;
				return false;
			}
		} else {
			if (intday > 28) {
			err = 10;
			return false;
			}
		}
	}

	return true;
}

function LeapYear(intYear) {
	if (intYear % 100 == 0) {
		if (intYear % 400 == 0) { return true; }
	} else {
		if ((intYear % 4) == 0) { return true; }
	}
	return false;
}

function doDateCheck(fromDate, toDate) {
	if (fromDate.value == "" || toDate.value == "") {
		alert("Båda datumfälten måste vara ifyllda!");
		return false;
	} 

	return true;
}