function PopUp(url,wname,width,height) {
	var winl = (screen.width - width) / 2;
	var wint = (screen.height - height) / 2;
	newfenster1 = window.open(url, wname, "scrollbars,width=" +width+ ",height=" +height+ ",top="+wint+",left="+winl);
	if (document.images) 
		newfenster1.focus();
} 
      
function openWindow(theURL,winName,features) { 
        fenster=window.open(theURL,winName,features);
	    fenster.focus();
}

function openRecipePopup(link) {
	fenster=window.open(link,'recipePopup','width=660,height=552,toolbar=no,status=no,scrollbars=yes,resizable=no,menubar=no,location=no');
	fenster.focus();
	return false;
}

function Wechsel(bildname,bild) {
     document.images[bildname].src=bild;
}

function checkSickness() {
	var sickness = false;
	
	var sicknessNames = new Array(
		"sick_Ch", "sick_Di", 
		"sick_Hy", "sick_Al");
		
	for (var index = 0; index < sicknessNames.length; ++index) {
		var sicknessName = sicknessNames[index];
		if ($(sicknessName) && $(sicknessName).checked){
			sickness = true;
			break;
		}
	}
	
	
	if (sickness){
		$('SicknessTip').show();
	} 
	else{
		$('SicknessTip').hide();
	}
}

function checkAllergy(){
	var allergies = 0;
	
	var allergyNames = new Array("allergy_Pe", 
		"allergy_Nu", "allergy_Fi", "allergy_Eg", 
		"allergy_Cr", "allergy_La", "allergy_Mi", 
		"allergy_Ce", "allergy_Mu", "allergy_So");

	for (var index = 0; index < allergyNames.length; ++index) {
	
		var allergy = allergyNames[index];
		if ($(allergy) && $(allergy).checked){
			allergies++;
		}  			
	}
		
	if (allergies > 0){			
		$('AllergyTip').show();
	} 
	else{
		$('AllergyTip').hide();
	}
}

function checkBMI(weight, height, warningDiv) {
	weight = $(weight).value;
	height = $(height).value;
	
	if (weight > 0 && height > 0) {
	
		var fHeight = height / 100;
        var fBMI = weight / (fHeight*fHeight);
        
		if (fBMI > 30){
			$(warningDiv).show();			
		}else{
			$(warningDiv).hide();
		}
	}
	else {
		$(warningDiv).hide();
	}
}

function checkReduction(input) {
	
	if (input.value!=null && input.value>20) {
		$('div20kg').show();
	}
	else {
		$('div20kg').hide();
	}
}


function checkScriptMessages() {
	$('scriptMessage').show();	
}