function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}


function confirmSubmit(){
var agree=confirm("Are you sure you wish to continue?");
if (agree)
	return true ;
else
	return false ;
}

function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}
function mailer()  {
	document.write  ('<a href="mailto:info@versatileflooring.co.uk">info@versatileflooring.co.uk</a>');
}

function showhide (id, toggle) {
	var objId =  id;
	var visible = toggle;
	
	if(visible == 'hide') {
		document.getElementById(objId).style.display = 'none';
	}
	else
	{
		document.getElementById(objId).style.display = 'block';
	}
}

function hideall ()
{
	if(document.getElementById('information')) {
		document.getElementById('information').style.display = 'none';
	}
	if(document.getElementById('specification')) {
		document.getElementById('specification').style.display = 'none';
	}
	if(document.getElementById('customer')) {
		document.getElementById('customer').style.display = 'none';
	}
	if(document.getElementById('products')) {
		document.getElementById('products').style.display = 'none';
	}
	if(document.getElementById('prodinfoR')) {
		document.getElementById('prodinfoR').style.display = 'none';
	}
	
	if(document.getElementById('information-head')) {
		document.getElementById('information-head').className = '';
	}
	if(document.getElementById('specification-head')) {
		document.getElementById('specification-head').className = '';
	}
	if(document.getElementById('customer-head')) {
		document.getElementById('customer-head').className = '';
	}
	if(document.getElementById('products-head')) {
		document.getElementById('products-head').className = '';
	}
}

function selected(id){	
	
	document.getElementById(id).className = 'selected';
	
}

function check_quantity(quantity, form){
	if(document.getElementById(quantity))
	{
		if(document.getElementById(quantity) == null ){
			alert('Please enter a quantity');	
			return false;
		}
		else {
			alert('quantity');
			return false;		
		}
	}
}

function validate_required(field,alerttxt){
	with (field){
		if (value==null||value==""){
			alert(alerttxt);
			return false;
		}
		else
		{
			return true;
		}
	}
}

function validate_form(thisform){
	with (thisform)	{
		if (validate_required(quantity,"Please enter quantity")==false){
			quantity.focus();
			return false;
		}
	}
}