function randomImageNumber() {
		myId=Math.random();
		myId*=8;
		myId=Math.ceil(myId);
		return myId;
	}
	var id=document.location.search.substr(4,1);
	function navigation(target){
		myId=id;
		window.location=target+".html?id="+myId;	
	}
	function checkform() {
		if (! /^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(form.mail.value)){
			alert("You have to fill in your name, your e-mail address and your message to send this form!");
			return (false);
		}
		else if (form.name.value == "" | form.mail.value == "" | form.message.value == "") {
			alert("You have to fill in your name, your e-mail address and your message to send this form!");
			return (false);
		}
	return (true);
	}
	function sendform(obj){
		if (checkform())
			obj.submit();
	}
	function delcontentform() {
		document.form.name.value="";
		document.form.mail.value="";
     	document.form.company.value="";
		document.form.street.value="";
		document.form.zipcity.value="";
		document.form.country.value=""
		document.form.phone.value="";
		document.form.fax.value="";
		document.form.message.value="";
	}