function changeBGColor(obj)
{
	obj.style.backgroundColor = '#FFFFFF';
}

function changeBGColor2(obj)
{
	obj.style.backgroundColor = '#F1F1F1';
}

function printDocument()
{
	window.print() ;
}

function checkRegEmail(obj){
	var reg=/^([\w]+)(\.[\w]+)*@([\w]+)(\.[\w]{2,3}){1,2}$/;
	var t2=document.f1.t2.value;
	var res=reg.test(t2);
		if(res == false){
			window.alert("Wrong E-Mail Address\nPlease Enter Youe E-Mail Address Again!\n--> example@example.example");
			document.f1.t2.value="";}
	obj.style.backgroundColor = '#F1F1F1';
}

function checkRegName(obj){
	var reg=new RegExp("^[^0-9][^0-9]*[^0-9]$","i");
	var t1=document.f1.t1.value;
	var res=reg.test(t1);
	if(res == false){
			window.alert("Wrong Name\nPlease Enter Your Name Without Number\n--> Someone");
			document.f1.t1.value="";}
	obj.style.backgroundColor = '#F1F1F1';
}