function CheckIfEnglish( String )
{
    var Letters = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz1234567890-";
     var i;
     var c;
      if(String.charAt( 0 )=='-')
	return false;
      if( String.charAt( String.length - 1 ) == '-' )
          return false;
     for( i = 0; i < String.length; i ++ )
     {
          c = String.charAt( i );
	  if (Letters.indexOf( c ) < 0)
	     return false;
     }
     return true;
}
function submitchecken() {

	if (document.frmsearchInt.searchedDomainName.value == "") {
		alert("请输入您要查询的英文域名。");
		document.frmsearchInt.searchedDomainName.focus();
		return false;
	}

if (!CheckIfEnglish(document.frmsearchInt.searchedDomainName.value )) {
		alert("在查询英文域名应输入英文不能输入中文及非法字符！");
		document.frmsearchInt.searchedDomainName.focus();
		return false;
	}
	document.frmsearchInt.searchType.value = "IntDomain";
	return true;
}

function CheckIfEnglish( String )
{
    var Letters = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz1234567890-";
     var i;
     var c;
      if(String.charAt( 0 )=='-')
	return false;
      if( String.charAt( String.length - 1 ) == '-' )
          return false;
     for( i = 0; i < String.length; i ++ )
     {
          c = String.charAt( i );
	  if (Letters.indexOf( c ) < 0)
	     return false;
     }
     return true;
}
function submitchecken1() {

	if (document.frmsearchInt1.searchedDomainName.value=="") {
		alert("请输入您要查询的英文域名。");
		document.frmsearchInt1.searchedDomainName.focus();
		return false;
	}

	if (!CheckIfEnglish(document.frmsearchInt1.searchedDomainName.value )) {
		alert("在查询英文域名应输入英文不能输入中文及非法字符！");
		document.frmsearchInt1.searchedDomainName.focus();
		return false;
	}
	document.frmsearchInt1.searchType.value = "IntDomain";
	return true;
}
function submitchecken4() {

	if (document.frmsearchInt4.searchedDomainName.value=="") {
		alert("请输入您要查询的CN域名。");
		document.frmsearchInt4.searchedDomainName.focus();
		return false;
	}

	if (!CheckIfEnglish(document.frmsearchInt4.searchedDomainName.value )) {
		alert("在查询英文域名应输入英文不能输入中文及非法字符！");
		document.frmsearchInt4.searchedDomainName.focus();
		return false;
	}
	document.frmsearchInt4.searchType.value = "IntDomain";
	return true;
}
function CheckIfChinese( String )
{ 
     var Letters = "`=~!@#$%^&*()_+[]{}\\|/?.>,<;:'\"";
     var i;
     var c;
     for( i = 0; i < String.length; i ++ )
     {
         c = String.charAt( i );
	     if (Letters.indexOf( c ) >= 0)
	       return false;
     }
     return true;
}

function CheckIfSpace(String)
{
	 var i;
     for( i = 0; i < String.length; i ++ )
     {
	 	  if(String.charAt(i) == ' ')
		   	 return true;
     }
     return false;
}
function submitchecken2() 
{

	if (document.frmsearchInt2.searchedDomainName.value == "") 
	{
		alert("请输入您要查询的中文域名。");
		document.frmsearchInt2.searchedDomainName.focus();
		return false;
	}

	if (! CheckIfChinese(document.frmsearchInt2.searchedDomainName.value)) 
	{
		alert("在查询中文域名应输入中文与英文不能输入非法字符！");
		document.frmsearchInt2.searchedDomainName.focus();
		return false;
	}

	if (CheckIfSpace(document.frmsearchInt2.searchedDomainName.value)) 
	{
		alert("在查询中文域名应输入中文与英文不能输入空格！");
		document.frmsearchInt2.searchedDomainName.focus();
		return false;
	}
	
	if (CheckIfEnglish(document.frmsearchInt2.searchedDomainName.value)) 
	{
		alert("在查询中文域名应输入中文与英文不能输入全为英文！");
		document.frmsearchInt2.searchedDomainName.focus();
		return false;
	}
	document.frmsearchInt2.searchType.value = "IntDomain";
	return true;
}
function submitchecken3() 
{

	if (document.frmsearchInt3.searchedDomainName.value == "") 
	{
		alert("请输入您要查询的中文域名。");
		document.frmsearchInt3.searchedDomainName.focus();
		return false;
	}

	if (! CheckIfChinese(document.frmsearchInt3.searchedDomainName.value)) 
	{
		alert("在查询中文域名应输入中文与英文不能输入非法字符！");
		document.frmsearchInt3.searchedDomainName.focus();
		return false;
	}

	if (CheckIfSpace(document.frmsearchInt3.searchedDomainName.value)) 
	{
		alert("在查询中文域名应输入中文与英文不能输入空格！");
		document.frmsearchInt3.searchedDomainName.focus();
		return false;
	}
	
	if (CheckIfEnglish(document.frmsearchInt3.searchedDomainName.value)) 
	{
		alert("在查询中文域名应输入中文与英文不能输入全为英文！");
		document.frmsearchInt3.searchedDomainName.focus();
		return false;
	}
	document.frmsearchInt3.searchType.value = "IntDomain";
	return true;
}

function submitchecken5() 
{

	if (document.frmsearchInt5.searchedDomainName.value == "") 
	{
		alert("请输入您要查询的Mobi域名。");
		document.frmsearchInt5.searchedDomainName.focus();
		return false;
	}

	if (! CheckIfEnglish(document.frmsearchInt5.searchedDomainName.value)) 
	{
		alert("在查询Mobi域名应输入英文不能输入非法字符！");
		document.frmsearchInt5.searchedDomainName.focus();
		return false;
	}

	if (CheckIfSpace(document.frmsearchInt5.searchedDomainName.value)) 
	{
		alert("在查询Mobi域名应输入英文不能输入空格！");
		document.frmsearchInt5.searchedDomainName.focus();
		return false;
	}
	
	document.frmsearchInt5.searchType.value = "IntDomain";
	return true;
}