function equalise()
{
	var side_bar = document.getElementById('side_bar');
	var content = document.getElementById('content');
	var sb_height = side_bar.offsetHeight;
	var c_height = content.offsetHeight;
	var new_height = Math.max(c_height,sb_height);
	
	
	if(c_height > sb_height)
	{
		//alert(new_height);
		new_height = new_height;
	}
	
	side_bar.style.height  = new_height+"px";
	content.style.height  = new_height+"px";
}
function equalise_ie6()
{
	var side_bar = document.getElementById('side_bar');
	var content = document.getElementById('content');
	var sb_height = side_bar.offsetHeight;
	var c_height = content.offsetHeight;
	var new_height = Math.max(c_height,sb_height);
	
	
	if(c_height > sb_height)
	{
		//alert(new_height);
		new_height = new_height+100;
	}
	else
	{
		new_height = new_height+350;
	}
	side_bar.style.height  = new_height+"px";
	content.style.height  = new_height+"px";
}

function showSC()
{
	if (document.all) {
		// IE4+ or IE6+ in standards compliant 
		myScroll = (document.documentElement.scrollTop) ? document.documentElement.scrollTop : document.body.scrollTop;
	} else {
		// Non-IE
		myScroll = window.pageYOffset;
	}
	cDiv = document.getElementById('size_chart_container');
	cDiv.style.top = myScroll+100+"px";
	cDiv.style.display = "block";
}
function hideSC()
{
	document.getElementById('size_chart_container').style.display = "none";
}

function changeRequired(element)
{
	element.style.color = "#000000";
	element.value = "";
}
function changeRequired2(element)
{
	element.style.color = "#000000";
	element.innerHTML = "";
}
function main_img_swap(src)
{
	document.getElementById('prod_main').src = src;
}
function getVal(Radio)
{
	var val = 0;
	for( i = 0; i < Radio.length; i++ )
	{
		if( Radio[i].checked == true )
		{
			val = Radio[i].value;
			break;
		}
	}
	return val;
}
function addToMail(form)
{
	var params = "";
	for( i = 0; i < form.length; i++ )
	{
		params = params + form[i].name + "=" + form[i].value +"&";
	}
	//alert(params);
	var url = 'inc/mailing_list.php';
	var ajax = new Ajax.Updater(
		{success: 'mail_popup'},url,{method: 'get', parameters: params, onFailure: reportError});
}
function showPopUp(element)
{
	if (document.all) {
		// IE4+ or IE6+ in standards compliant 
		myScroll = (document.documentElement.scrollTop) ? document.documentElement.scrollTop : document.body.scrollTop;
	} else {
		// Non-IE
		myScroll = window.pageYOffset;
	}
	cDiv = document.getElementById(element);
	cDiv.style.top = myScroll+100+"px";
	cDiv.style.display = "block";
	
}
function hidePopUp(element)
{
	document.getElementById(element).style.display = "none";
}
function enterComp(answer,comp,email,cb)
{
	var url = 'inc/competition_results.php';
	var params = '?answer=' + answer + "&comp="+comp+"&email=" + email+"&cb=" + cb;
	var ajax = new Ajax.Updater(
		{success: 'competition'},url,{method: 'get', parameters: params, onFailure: reportError});
}
function retryComp()
{
	var url = 'inc/competition.php';
	var params= '';
	var ajax = new Ajax.Updater(
		{success: 'competition'},url,{method: 'get', parameters: params, onFailure: reportError});
}
function reportError(request)
{
	alert('Error!');
}