// JavaScript Document

function check_num(str){
	if (/[^0-9.]/g.test(str)){
		return false;
	}else{
		return true;
	}
}

function isEmail(str)
{
	var reg1 = new RegExp('^[a-zA-Z0-9][a-zA-Z0-9@._-]{3,}[a-zA-Z]$');
	var reg2 = new RegExp('[@.]{2}');
	
	if (str.search(reg1) == -1
			|| str.indexOf('@') == -1
			|| str.lastIndexOf('.') < str.lastIndexOf('@')
			|| str.lastIndexOf('@') != str.indexOf('@')
			|| str.search(reg2) != -1)
		return false;
	
	return true;
}

function Checker(act){
	document.form1.items.value="";
	//alert(document.form1.elements["items"].value);
	//alert(document.form1.elements["item"].value);
	if (act=="all")
	{
		if(!document.form1.item.length){
			if(document.form1.allitems.checked == true){
				document.form1.item.checked = true;
				document.form1.items.value = document.form1.item.value;
			}else{
				document.form1.item.checked = false;
			}
		}else{
			if(document.form1.allitems.checked == true){
				for(i=0;i<document.form1.item.length;i++)
				{
					document.form1.item[i].checked = true;
					document.form1.items.value += document.form1.item[i].value;
					document.form1.items.value += ",";
				}
			}else{
				for(i=0;i<document.form1.item.length;i++)
				{
					document.form1.item[i].checked = false;
				}
			}
		}
	}else{
		if(!document.form1.item.length){
			if(document.form1.item.checked == true){
				document.form1.items.value = document.form1.item.value;
			}
		}else{
				for(i=0;i<document.form1.item.length;i++)
				{
					if(document.form1.item[i].checked==true)
					{
						document.form1.items.value += document.form1.item[i].value;
						document.form1.items.value += ",";									

					}
				}
		}
	}
	//alert(document.form1.items.value);
	return true;
}

function chcontent(action){
			if (action == "show"){
			  document.getElementById('content').style.display='block';
			}else
			{
			document.getElementById('content').style.display='none';
			}
}

function chcontentsell(action){
			if (action == "show"){
			  document.getElementById('content_sell').style.display='block';
			}else
			{
			document.getElementById('content_sell').style.display='none';
			}
}

function showdiv(divname,action){
			if (action == "show"){
			  document.getElementById(divname).style.display='block';
			}else
			{
			document.getElementById(divname).style.display='none';
			}
}