// JavaScript Document

//rates things updateRate, readRateCookies, getNewRate

<!--



function updateRateDisplayOver(img){

	var overImage = new Image();

	overImage.src="./images/rate_star_over.gif";

	var outImage = new Image();

	outImage.src="./images/rate_star_out.gif";



	var currentNum = parseInt(img.getAttribute("alt"));

	var parentTd = img.parentNode;

	var parentTr = parentTd.parentNode;



	for(var i=1;i<parentTr.cells.length;i++){

		var currentTd = parentTr.cells[i];

		var currentImage = currentTd.childNodes[0];

		if(i<=currentNum){

			currentImage.src=overImage.src;

		}else{

			currentImage.src=outImage.src;

		}

	}

}

/**

 *

 * @access public

 * @return void

 **/

function updateRateDisplayOut(img){

	var parentTd = img.parentNode;

	var parentTr = parentTd.parentNode;



	for(var i=1;i<parentTr.cells.length;i++){

		var currentTd = parentTr.cells[i];

		var currentImage = currentTd.childNodes[0];

		var currentSrc = currentImage.getAttribute("previousImage");

		currentImage.src=currentSrc;

	}

}



/**

 *

 * @access public

 * @return void

 **/

 /**

  *

  * @access public

  * @return void

  **/

 function readRateCookieExists(ci){

	var ca = document.cookie.split(";");

	for( var i=0;i<ca.length;i++){

		var currentCookieA = ca[i].split("=");

		var name=currentCookieA[0];

		var value=currentCookieA[1];



		if(name.charAt(0)==" "){

			name = name.substring(1);

		}

		if(name=="rc"){



			var valuesArray = value.split(",");

			for(var k=0;k<valuesArray.length-1;k++){

				var curCI = valuesArray[k];

				if(curCI == ci){

					alert("Already Rated!!!");

					return true;

				}

			}

		}

	}

	return false;

 }

 function createRateCookie(ci){

	var curDate = new Date();

	curDate.setDate(curDate.getDate()+120);

	var ca=document.cookie.split(";");

	for( var i=0;i<ca.length;i++){

		var currentCookieA = ca[i].split("=");

		var name=currentCookieA[0];

		if(name.charAt(0)==" "){

			name = name.substring(1);

		}

		var value=currentCookieA[1];

		if(name=="rc"){

			document.cookie="rc="+value+ci+",; expires="+curDate.toGMTString()+"; path=/";

		}

	}

	document.cookie="rc="+ci+",; expires="+curDate.toGMTString()+"; path=/";

 }

 //loader image

 var loaderRate = new Image();

	loaderRate.src='./images/rate_loader.gif';

	loaderRate.width='25px';

	loaderRate.height='25px';

function updateRate(img){



	//if car already rated from user return and dont let vote

	if(readRateCookieExists($('ci').value)){

		return;

	}

	//new td to hold loader image and message

	var newTd = document.createElement("td");

	newTd.setAttribute("align","center");

	newTd.colSpan=5;

	newTd.style.fontWeight='bold';

	//message to show to user

	var message = document.createTextNode("Rating...");

	//append image and message to the new td

	newTd.appendChild(loaderRate);

	newTd.appendChild(message);



	//get parent td

	var parentTd = img.parentNode;

	//get parent tr

	var parentTr = parentTd.parentNode;

	//array to hold the kids cells temporarily

	var kidsArray = new Array();

	//function to remove kids cells

	var removeKids = function(tr){

		var curLength = tr.cells.length;

		for(var i=0;i<curLength;i++){

			kidsArray[i]=tr.childNodes[0];

			tr.removeChild(tr.childNodes[0]);

		}

	};

	//function to append kids cells

	var appendKids = function(tr){

		//alert(kidsArray);

		tr.removeChild(tr.childNodes[0]);

		for(var i=0;i<kidsArray.length;i++){

			//alert(kidsArray[i]);

			tr.appendChild(kidsArray[i]);

		}

	};

	//function to update kids if rate change

	var updateKids = function(tr,rate){

		for(var i=1;i<tr.cells.length;i++){

			var curCell = tr.cells[i];

			var curImage = curCell.childNodes[0];

			if(i<=rate){

				curImage.src='./images/rate_star_over.gif';

				curImage.setAttribute('previousImage','./images/rate_star_over.gif');

			}else{

				curImage.src='./images/rate_star_out.gif';

				curImage.setAttribute('previousImage','./images/rate_star_out.gif');

			}

		}

	};

	var oldRate = $('cr').value;



	var curRate = $("cr").value;

	var curId = $("ci").value;



	var rate = parseInt(img.getAttribute("alt"));



	var optionsRate = {

		method:'get',

		parameters:"ci="+curId+"&r="+rate,

		onCreate:function(){

			removeKids(parentTr);

			parentTr.appendChild(newTd);

		},

		onSuccess:function(transport){

			createRateCookie(curId);

			var answer = transport.responseText.split(":");



			if(answer[0]=="true"){

				appendKids(parentTr);

				var newRate = parseInt(answer[1]);

				if(newRate!=oldRate){

					$('cr').value=newRate;

					updateKids(parentTr,newRate);

				}

			}else if(answer[0]=="false"){

				appendKids(parentTr);

				alert(answer[1]);

			}else{

				appendKids(parentTr);

			}

		},

		onFailure:function(){

			appendKids(parentTr);

		}

	};

	var ajaxRate = new Ajax.Request("http://www.moto-trader.gr/updateRC.php",optionsRate);

}

//-->