//here you place the ids of every element you want.


function hidediv(id) {
	//safe function to hide an element with a specified id
	if (document.getElementById) { // DOM3 = IE5, NS6
		document.getElementById(id).style.display = 'none';
	}
	else {
		if (document.layers) { // Netscape 4
			document.id.display = 'none';
		}
		else { // IE 4
			document.all.id.style.display = 'none';
		}
	}
}

function showdiv(id) {
	//safe function to show an element with a specified id
		  
	if (document.getElementById) { // DOM3 = IE5, NS6
		document.getElementById(id).style.display = 'block';
	}
	else {
		if (document.layers) { // Netscape 4
			document.id.display = 'block';
		}
		else { // IE 4
			document.all.id.style.display = 'block';
		}
	}
}
 function validate1()
    {
	formObj = document.form1;
	if (formObj.amount.value == 'other amount') {
	  showdiv('other_amount');
	}
	else{
		 hidediv('other_amount');
	}
   }
function flip_tab(id){
	


 if(document.getElementById(id))
 {
	
	if (document.getElementById(id).style.display == 'block')
	{ // DOM3 = IE5, NS6
		hidediv(id);
	}
	else
	{
		showdiv(id);
	}
 }
}