function validate(){
	var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	var x=document.getElementById("forms");
	var p=document.getElementsByTagName("p")	
		var ok=0;
	for(i=0;i<=3;i++) p[i].style.visibility="hidden";
	if (x.elements[5].value==""){
		p[0].style.visibility="visible";
		ok=1;
	}
	if (x.elements[6].value==""){
		p[1].style.visibility="visible";
		ok=2;
	}
	else if (!filter.test(x.elements[6].value)){
		p[1].style.visibility="visible";
		ok=4;
	}
	if (x.elements[7].value==""){
		p[2].style.visibility="visible";
		ok=3;
	}
	if (x.elements[8].value==""){
		p[3].style.visibility="visible";
		ok=3;
	}

	if(ok==0) x.submit();
};