function clearval(curid,curval){
	if(document.getElementById(curid).value	==	curval){
		document.getElementById(curid).value="";
		return false;
	}
	if(document.getElementById(curid).value	==	''){
		document.getElementById(curid).value= curval;
		return false;
	}
}
function changeproduct(isbn10,paction){
	
	if(paction == 'remove'){
		if(confirm("Are you sure want to delete")){
			document.getElementById('select-list').value = paction;
			document.getElementById('isbn10').value = isbn10;
			document.compareprice.submit();
		}
	}else{
		document.getElementById('select-list').value = paction;
		document.getElementById('isbn10').value = isbn10;
		document.compareprice.submit();
	}
}
function clear_cart(paction){
	if(confirm("Are you sure want to clear cart")){
		document.getElementById('select-list').value = paction;
		document.compareprice.submit();
	}
}
function changetab(tabaction){
	document.getElementById('select-tab').value = tabaction;
	document.pricetab.submit();
}