function InsertTag(oElement, ThisTagName){
	if ( typeof(oElement) == 'object' ) {
		oElement.focus();
		if ( typeof(document.selection.createRange()) == 'object' ) {
			var seltext = document.selection.createRange();
			seltext.text = '{' +ThisTagName +'{' +seltext.text +'}' +ThisTagName +'}' ;
			document.selection.clear;
		}
	}
}

function testRegistrationForm(theForm) {
	if (theForm.elements('user_email').value=='' ) {
	    	alert('Zadejte prosím Vaši e-mailovou adresu.');
	    	theForm.elements('user_email').focus();
	    	return (false);
	  	}
	  	
	if (theForm.elements('user_email').value.length != 0) {
	 	sta = 0
	  	for (i = 0; i < theForm.elements('user_email').value.length; i++) {                       
	  		if (theForm.elements('user_email').value.substring(i, i+1) == '.'  && sta == 1) {
	  			sta++;
	  			}
	  		if (theForm.elements('user_email').value.substring(i, i+1) == '@') {
	  			sta++;
	  			}
			}
		if (sta != 2) {
		    	alert('Neplatná e-mailová adresa.');
		    	theForm.elements('user_email').focus();
		    	return (false);
			}
	  	}
	return (true);
}

function testOrderForm(theForm) {
	if (theForm.elements('user_firstname').value == '') {
		alert('Zadejte prosím své jméno.');
	    	theForm.elements('user_firstname').focus();
	    	return (false);
	}
	if (theForm.elements('user_surname').value == '') {
		alert('Zadejte prosím své příjmení.');
	    	theForm.elements('user_surname').focus();
	    	return (false);
	}
	
	if (theForm.elements('user_email').value=='' ) {
	    	alert('Zadejte prosím Vaši e-mailovou adresu.');
	    	theForm.elements('user_email').focus();
	    	return (false);
	  	}
	  	
	if (theForm.elements('user_email').value.length != 0) {
	 	sta = 0
	  	for (i = 0; i < theForm.elements('user_email').value.length; i++) {                       
	  		if (theForm.elements('user_email').value.substring(i, i+1) == '.'  && sta == 1) {
	  			sta++;
	  			}
	  		if (theForm.elements('user_email').value.substring(i, i+1) == '@') {
	  			sta++;
	  			}
			}
		if (sta != 2) {
		    	alert('Neplatná e-mailová adresa.');
		    	theForm.elements('user_email').focus();
		    	return (false);
			}
	}
	return (true);
}
		
function openWindow(sPage, nHeight, nWidth) {
	window.open(sPage, null, 'height='+ nHeight +',width='+ nWidth +',status=yes,toolbar=no,menubar=no,location=no,resizable=yes,scrollbars=yes');
}

function openNew(oAnchor){
	window.open(oAnchor.href, '_blank');
	return false;
}

function opennew(oAnchor){
	return openNew(oAnchor);
}

function MessageTo(sUser){
    var oField = document.getElementById('message');
    if (typeof(oField) == 'object') {
        oField.value = oField.value + sUser +': ';
    }
}

function showSearchForm(sFormID) {
	var oElement = document.getElementById(sFormID);
	if (typeof(oElement) == 'object') {
		if (oElement.style.display == 'none') {
			oElement.style.display = '';
		} else {
			oElement.style.display = 'none';
		}
	}
}

function submitInq(sElName, nInqID, nQID) {
	var oEl = document.getElementById(sElName);
	if (typeof(oEl) == 'object') {
		oEl.elements[nInqID].value = nQID;
		oEl.submit();
	}
}

function resetEl(sElName, sElValue) {
	var oEl = document.getElementById(sElName);
	if (typeof(oEl) == 'object') {
		oEl.value = ((sElValue == undefined) ? '' : sElValue);
	}
}

function reqEl(sElements) {
	var sOUT = '', nCnt = 1, oElFirst;
	var arrElements = sElements.split(";");
	for (var nI = 0; nI < arrElements.length; nI++) 
	{
		var arrItem = arrElements[nI].split("|");
		if (arrItem.length == 2) 
		{
			var oEl = document.getElementById(arrItem[0]);
			if (typeof(oEl) == 'object') {
				if (oEl.value == '') { 
					sOUT += '\n'+ nCnt +') '+ arrItem[1]; 
					if (nCnt == 1) { 
						if (oEl.type != 'hidden') {
							oEl.focus();
						}
					}
					nCnt++;
				}
			}
		}
	}
	
	if (sOUT != '') {
		alert('Některé povinné údaje ve formuláři nebyly vyplněny:\n'+ sOUT);
		return false;
	} else {
		return true;
	}
}

function checkDelivery(){
	var aRadio = document.getElementsByName("payment");
	var bOut = false;
	
	for(i=0;i<aRadio.length;i++){
		if(aRadio[i].checked == true){
			bOut = true;
		}
	}
	
	if(bOut == true){
		return true;
	} else {
		alert('Některé povinné údaje ve formuláři nebyly vyplněny:\n\nNebyl vybrán způsob dopravy.\nNebyl vybrán způsob platby.');
		return false;
	}
}

function cloneFormElementFile(sElName, sElNameCount){
    var nIndex = 1;
    var oElCnt = document.getElementById(sElNameCount);
    if (typeof(oElCnt) == 'object') {
        nIndex = parseInt(oElCnt.value) + 1;
    }
    var oEl = document.getElementById(sElName);
	if (typeof(oEl) == 'object') {
        var newElement; 
        newElement = document.createElement("input");
        newElement.name = oEl.name +'_'+ nIndex;
        newElement.Name = oEl.name +'_'+ nIndex;
        newElement.id = oEl.name +'_'+ nIndex;
        newElement.type = oEl.type;
        newElement.className = oEl.className;

        var prevEl = document.getElementById(oEl.name +'_'+ (nIndex-1));
        if (typeof(prevEl) != 'object' || prevEl == null) {
            prevEl = oEl;
        }

        prevEl.insertAdjacentHTML("beforeBegin", '<input type="'+ newElement.type +'" type="'+ newElement.type +'" id="'+ newElement.id +'" name="'+ newElement.name +'" class="'+ newElement.className +'"/><br />');

        if (typeof(oElCnt) == 'object') {
            oElCnt.value = nIndex;
        }
    }
}