// JavaScript Document

function elemhighlight(c,colour){
	if(typeof colour == "undefined")colour = '#EBEBD6';
	c.style.backgroundColor = colour;
}

function elemlowlight(c,colour){
	if(typeof colour == "undefined")colour = '#ffffff';
	c.style.backgroundColor = colour;
}

// clear form fields on focus
function clearField(field,origval)
{
	if(field.value == origval) {
		field.value = "";
	}
}

// revert form field value back to default on blur if blank
function defaultField(field,origval)
{
	if(field.value == "" && field.defaultValue == origval) {
		field.value = field.defaultValue;
	}
}

function popitup(url, width, height) {
	var left = (screen.width/2)-(width/2);
	var top = (screen.height/2)-(height/2);
	
	newwindow=window.open(url,'BikeScene','height='+height+',width='+width+',top='+top+',left='+left+',scrollbars=yes');
	if (window.focus) {newwindow.focus()}
	return false;
}