// JavaScript Document

function changeImages(flat_id, num_img){
	var curitem = document.getElementById('flat-'+flat_id);
	curitem.src='assets/templates/elitkvartira/images/flat-'+flat_id+'-'+num_img+'.jpg';
}






function formData2QueryString(docForm) {
	var submitContent = '';
	var formElem;
	var lastElemName = '';

	for (i = 0; i < docForm.elements.length; i++) {
		formElem = docForm.elements[i];
		if(formElem.disabled) continue;
		switch (formElem.type) {
			// Text fields, hidden form elements
			case 'text':
			case 'hidden':
			case 'password':
			case 'textarea':
			case 'submit':
			case 'select-one':
				submitContent += formElem.name + '=' + escape(formElem.value) + '&'
				break;
			// Radio buttons
			case 'radio':
				if (formElem.checked) {
					submitContent += formElem.name + '=' + escape(formElem.value) + '&'
				}
				break;
			// Checkboxes
			case 'checkbox':
				if (formElem.checked) {
					// Continuing multiple, same-name checkboxes
					if (formElem.name == lastElemName) {
						// Strip of end ampersand if there is one
						if (submitContent.lastIndexOf('&') == submitContent.length-1) {
							submitContent = submitContent.substr(0, submitContent.length - 1);
						}
						// Append value as comma-delimited string
						submitContent += ',' + escape(formElem.value);
					}
					else {
						submitContent += formElem.name + '=' + escape(formElem.value);
					}
					submitContent += '&';
					lastElemName = formElem.name;
				}
				break;
		}
	}
	// Remove trailing separator
	submitContent = submitContent.substr(0, submitContent.length - 1);
	return submitContent;
}

var responseText;
	        
function xmlhttpGet(strURL, strSubmit, strResultFunc,id) {
	
	        var xmlHttpReq = false;
	        // Mozilla/Safari
	    if (window.ActiveXObject) {
	                xmlHttpReq = new ActiveXObject("Microsoft.XMLHTTP");
	        }
		else if (window.XMLHttpRequest) {
	                xmlHttpReq = new XMLHttpRequest();
	                xmlHttpReq.overrideMimeType('text/xml');
	        }
	        xmlHttpReq.open('POST', strURL, true);
	        xmlHttpReq.setRequestHeader('Content-Type',
			     'application/x-www-form-urlencoded');
	        xmlHttpReq.onreadystatechange = function() {
	                if (xmlHttpReq.readyState == 4) {
	                	//performing our things
	                	responseText=xmlHttpReq.responseText;
	                	eval(strResultFunc+"(responseText,'"+id+"')")
	 
	                 }
	
	        }
	        xmlHttpReq.send(strSubmit);
	}



function hide_object(obj){
        var cell = document.getElementById(obj);
        cell.style.display = "none";
}

function show_object(obj){
        var cell = document.getElementById(obj);
        cell.style.display = "block";
}



function contact_us(formName,divID){
	frm=document.getElementById (formName);
	
	submit=formData2QueryString(frm);
	//alert (submit);
	xmlhttpGet("send_email.ajax.php", submit, "callback_wrapper",divID);
}


function callback_wrapper(responseText,obj){
	
	cell=document.getElementById(obj);
	//alert ("obj="+obj+"; cell="+cell);
	//alert(responseText);
	cell.innerHTML=responseText;
}