function getInternetExplorerVersion()
// Returns the version of Windows Internet Explorer or a -1
// (indicating the use of another browser).
{
   var rv = -1; // Return value assumes failure.
   if (navigator.appName == 'Microsoft Internet Explorer')
   {
      var ua = navigator.userAgent;
      var re  = new RegExp("MSIE ([0-9]{1,}[\.0-9]{0,})");
      if (re.exec(ua) != null)
         rv = parseFloat( RegExp.$1 );
   }
   return rv;
}

function showPic(pic){
	window.open("/pics/"+pic);
}

function do_onfocus(item, txt){
	//alert("IN")
	document.getElementById(item).style.border = "1px solid #5c9ebf";
	if(document.getElementById(item).value == txt){
		document.getElementById(item).value = "";
	}
}

function do_onblur(item, txt){
	//alert("OUT")
	document.getElementById(item).style.border = "1px solid #bbbbbb";
	if(document.getElementById(item).value == ""){
		document.getElementById(item).value = txt;
	}
}

function showCampaign(){
	num = campaign_count;
	num_left = campaign_left_count;
	
	if(typeof campaign_bottom_count != "undefined"){
		num_bottom = campaign_bottom_count;
	}else{
		num_bottom = 0;
	}
	if(typeof campaign_right_count != "undefined"){
		num_right = campaign_right_count;
	}else{
		num_right = 0;
	}
	
	if(num==0){
		document.getElementById("advertise_box").style.display = "none";
	}else{
		var randomnumber = 1 + Math.floor(Math.random()*(num+1));
		while(randomnumber>num){
			var randomnumber = 1 + Math.floor(Math.random()*(num+1));
		}
		document.getElementById("campaign"+randomnumber).style.display = "";
	}
	
	if(num_left==0 || screen.width<1100 || getInternetExplorerVersion()<7){
		document.getElementById("advertise_box_left").style.display = "none";
	}else{
		var randomnumber = 1 + Math.floor(Math.random()*(num_left+1)	);
		while(randomnumber>num_left){
			var randomnumber = 1 + Math.floor(Math.random()*(num_left+1));
		}
		document.getElementById("campaign_left"+randomnumber).style.display = "";
	}
	
	if(num_bottom!=0){
		var randomnumber = 1 + Math.floor(Math.random()*(num_bottom+1)	);
		while(randomnumber>num_bottom){
			var randomnumber = 1 + Math.floor(Math.random()*(num_bottom+1));
		}
		document.getElementById("campaign_bottom"+randomnumber).style.display = "";
	}
	
	if(num_bottom!=0){
		var randomnumber = 1 + Math.floor(Math.random()*(num_bottom+1)	);
		while(randomnumber>num_bottom){
			var randomnumber = 1 + Math.floor(Math.random()*(num_bottom+1));
		}
		document.getElementById("campaign_bottom"+randomnumber).style.display = "";
	}
	
	if(num_right!=0){
		var randomnumber = 1 + Math.floor(Math.random()*(num_right+1)	);
		while(randomnumber>num_right){
			var randomnumber = 1 + Math.floor(Math.random()*(num_right+1));
		}
		document.getElementById("campaign_right"+randomnumber).style.display = "";
	}
}

function chkForm(form){
	err = 0;
	switch(form){
		case "contact":
			fid = "err_contact";
			document.getElementById('err_contact_err1').style.display = "none";
			document.getElementById('err_contact_err2').style.display = "none";
			document.getElementById(fid).style.display = "none";
			if(document.getElementById('fname').value.length<2){
				document.getElementById('err_contact_err1').style.display = "";
				err=1	
			}
			if(document.getElementById('phone_num').value.length<2){
				document.getElementById('err_contact_err2').style.display = "";
				err=1	
			}
			break;
		
		case "contact_inner":
			fid = "err_contact_inner";
			document.getElementById('err_contact_inner_err1').style.display = "none";
			document.getElementById('err_contact_inner_err2').style.display = "none";
			document.getElementById(fid).style.display = "none";
			if(document.getElementById('frmContactInner').fname.value.length<2){
				document.getElementById('err_contact_inner_err1').style.display = "";
				err=1	
			}
			if(document.getElementById('frmContactInner').phone_num.value.length<2){
				document.getElementById('err_contact_inner_err2').style.display = "";
				err=1	
			}
			break;
		
		case "search":
			if(document.getElementById('s').value.length>2){
				document.getElementById("frmSearch").action = "/p,859,857.php";
				return true;
			}else{
				return false;
			}
			break;
	}
	if(err!=0){
		document.getElementById(fid).style.display = "";
		return false;
	}else{
		return true;
	}	
}

function showResult(){
	document.getElementById('search_results').innerHTML = tmpBody;
}

lastID = ""
function onHover(item){
	if(lastID !=  item){
		//document.getElementById(item).style.backgroundImage = "url('http://www.prep.co.il/images/sp_bg_on.png')";
		document.getElementById(item+"_st").style.color = "#184ae6";
		document.getElementById(item+"_title").style.textDecoration = "underline";
		lastID =  item
	}
}

function onBlur(item){
	//document.getElementById(item).style.backgroundImage = "url('http://www.prep.co.il/images/sp_bg.png')";
	document.getElementById(item+"_st").style.color = "#000000";
	document.getElementById(item+"_title").style.textDecoration = "none";
	lastID =  "";
}

current_page = 1;
pages = 0;
function itemsNav(){
	pages = Math.round((records_count/10)+0.49);
	tmpHTML="";
	if(records_count >10){
		for(i=11;i<records_count+1;i++){
			document.getElementById("sp"+i).style.display = "none";
		}
	}
	for(i=1;i<pages+1;i++){
		if(i==1){
			tmpHTML += "<a href=\"javascript:;\" onclick=\"showPageItems("+i+")\" class=\"current\">"+i+"</a>";
		}else{
			tmpHTML += "<a href=\"javascript:;\" onclick=\"showPageItems("+i+")\" >"+i+"</a>";
		}
	}
	if(pages>1){
		if(document.getElementById("items_pages"))document.getElementById("items_pages").innerHTML = tmpHTML;
	}else{
		if(document.getElementById("items_nav"))document.getElementById("items_nav").innerHTML = "";
	}
}

function showPageItems(page){
	if(page != current_page){
		startat = ((page-1)*10)+1;
		endat = ((page-1)*10)+11;
		for(i=1;i<records_count+1;i++){
			if(i>= startat && i<endat){
				document.getElementById("sp"+i).style.display = "";
			}else{
				document.getElementById("sp"+i).style.display = "none";
			}
		}
		tmpHTML = "";
		for(i=1;i<pages+1;i++){
			if(i==page){
				tmpHTML += "<a href=\"javascript:;\" onclick=\"showPageItems("+i+")\" class=\"current\">"+i+"</a>";
			}else{
				tmpHTML += "<a href=\"javascript:;\" onclick=\"showPageItems("+i+")\" >"+i+"</a>";
			}
		}
		document.getElementById("items_pages").innerHTML = tmpHTML;
		current_page = page;
	}
	
}