// common.js
function ShowDiv(DivName)
{
	if	(document.layers) {
		document.layers[DivName].display="block"; 
		document.layers[DivName].visibility="visible"; 
	} else if (document.getElementById) {
		document.getElementById(DivName).style.display="block";
		document.getElementById(DivName).style.visibility="visible";
	} else if (document.all) {
		document.all(DivName).style.display="block";
		document.all(DivName).style.visibility="visible";	
	}
	
}

function HideDiv(DivName) 
{
	if	(document.layers) {
		document.layers[DivName].display="none"; 
		document.layers[DivName].visibility="hidden"; 
	} else if (document.getElementById) {
		document.getElementById(DivName).style.display="none";
		document.getElementById(DivName).style.visibility="hidden";
	} else if (document.all) {
		document.all(DivName).style.display="none";
		document.all(DivName).style.visibility="hidden";	
	}
}

function showTip(obj,content) {
	var popin = new getObj("popin")
	var popincontent = new getObj("popin_innertxt")
	var intmoveLeft = 0;
	var intmoveTop = 0;
	
	if (browserName.indexOf('safari') !=-1) {
		intmoveLeft = -12;
		intmoveTop = 30;
	} else {
		intmoveLeft = -12;
		intmoveTop = 10;
	}
	
	if (obj && popin.obj)	{
		popin.style.top = findPosTop(obj) + intmoveTop + 'px';
		popin.style.left = findPosLeft(obj) + intmoveLeft + 'px';
		popincontent.obj.innerHTML = content;
	}
	ShowDiv("popin")
}

// tabswticher(X, Y)
// tabsetX_buttonY
// tabsetX_divY
function tabswitcher(strTabSet, intTabID) {
	strButtons = 'tabset_' + strTabSet + '_button';
	strDivs = 'tabset_' + strTabSet + '_div';
	for (i = 1; i <= 10; i++) {
		try {
			var objTab =   document.getElementById(strButtons + i);
			var objLayer = document.getElementById(strDivs + i);
			
			if (i == intTabID) {
				objTab.className = 'on';
				objLayer.style.display = 'block';
			} else {
				objTab.className = '';
				objLayer.style.display = 'none';
			}
		} catch(e) { i = 100; }
	}
}

// function to turn a group of buttons on or off, similar to the tab script, but without the layer swap
function setClassOn(strButtons,intButtonID) {
	for (i = 1; i <= 10; i++) {
		try {
			var objTab = document.getElementById(strButtons + i);
			
			if (i == intButtonID) {
				objTab.className = 'on';
			} else {
				objTab.className = '';
			}
		} catch(e) { i = 100; }
	}
}

function getObj(name) {
	if (document.getElementById) {
		this.obj = document.getElementById(name);
		if (this.obj) this.style = document.getElementById(name).style;
	} else if (document.all) {
		this.obj = document.all[name];
		if (this.obj) this.style = document.all[name].style;
	} else if (document.layers) {
		if (document.layers[name]) {
			this.obj = document.layers[name];
			if (this.obj) this.style = document.layers[name];
	   } else {
			this.obj = eval("document.layers." + name + ".layers[name]");
			if (this.obj) this.style = eval("document.layers." + name + ".layers[name]");
	   }
	}
}

// get position scripts
function findPosLeft(obj) {
	var curleft = 0;
	if (obj.offsetParent) {
		while (obj.offsetParent) {
			curleft += obj.offsetLeft;
			obj = obj.offsetParent;
		}
	} else if (obj.x) {
		curleft += obj.x;
	}
	return curleft;
}

function findPosTop(obj) {
	var curtop = 0;
	var printstring = '';
	if (obj.offsetParent) {
		while (obj.offsetParent) {
			curtop += obj.offsetTop
			obj = obj.offsetParent;
		}
	} else if (obj.y) {
		curtop += obj.y;
	}
	return curtop;
}
//end get position scripts


// AJAX FUNCTIONS
var Message;
var strMessage;

function loadXMLTarget(strURL, strTarget, strMessage, strTest) {
	if (strTest) { alert(strURL); }
	
	// This stops ajax caching
	if (strURL.indexOf("?") > -1) {
		strURL = strURL + "&" + Date();
	} else {
		strURL = strURL + "?cache=" + Date();
	}
	
	if (strTarget == "") {
		alert('Please specify a target');
	}
	// branch for native XMLHttpRequest object
	if (window.XMLHttpRequest) {
		Message = new XMLHttpRequest();
		Message.onreadystatechange = function() {processTargetHTML(strTarget);};
		Message.open("GET", strURL, true);
		Message.send(null);
	// branch for IE/Windows ActiveX version
	} else if (window.ActiveXObject) {
		Message = new ActiveXObject("Microsoft.XMLHTTP");
		if (Message) {
			Message.onreadystatechange =function() {processTargetHTML(strTarget);};
			Message.open("GET", strURL, true);
			Message.send();
		}
	}
}


function processTargetHTML(strTarget) {
	//alert(strTarget);
	var obj = new getObj(strTarget);
    switch (Message.readyState) {
		case 1:
			//obj.obj.innerHTML = "<img src='/images/loading-anim.gif'>";
			break;
		case 4:
			// only if "OK"
			if (Message.status == 200) {
				obj.obj.innerHTML = Message.responseText;
			} else {
				obj.obj.innerHTML = Message.responseText;
				//alert("There was a problem retrieving the XML data:\n" + Message.statusText);
			}
		break;
    }
}
// END AJAX FUNCTIONS

function maxchars(evt, textarea, length, direction)
{
	
	var evekeyVal;
		
	//alert(evt);
	if (evt) 
	{
	
		//alert("here");	
		evekeyVal = (evt.which) ? evt.which : evt.keyCode;
		//alert(evekeyVal);
	}	

	if (textarea.value.length >= length && !(evekeyVal >= 37 && evekeyVal <= 40) && evekeyVal != 8)
	{
		//alert(evekeyVal);
		textarea.value = textarea.value.substring(0, length);
		return false;
	}
	else
	{
		if (direction == "up")
		{
			if (textarea.value.length >= length && !(evekeyVal >= 37 && evekeyVal <= 40) && evekeyVal != 8)
			{
				textarea.value = textarea.value.substring(0, length);
				return false;
			}
		}
		//alert(textarea.value.length);
		return true;
	}
}

function productsearch (prodsearchid)
{	
	var searchterm = document.getElementById(prodsearchid).value;
	window.location.href = "/shop/search.aspx?SearchTerm=" + searchterm;
}	

function submitenter(prodsearchid,e)
{
	var keycode;
	if (window.event) keycode = window.event.keyCode;
	else if (e) keycode = e.which;
	else return true;

	if (keycode == 13)
	{
		var searchterm = document.getElementById(prodsearchid).value;
		window.location.href = "/shop/search.aspx?SearchTerm=" + searchterm;
		return false;
	}
	else
		return true;
}