用PHP和MSSQL开发的sspace商城系统

				
				
				function checkdata(theform)
				{
					if (theform.storename.value == "" || theform.storename.value.length > "50")
					{
						alert("");
						theform.storename.focus();
						return false; 
					}
					if (theform.truename.value == "" || theform.truename.value.length > "12") 
					{
						alert("");
						theform.truename.focus();
						return false; 
					}
					if (theform.sidcode.value == "" || isNaN(theform.sidcode.value) ) 
					{
						alert("");
						theform.sidcode.focus();
						return false; 
					}
					if (theform.address.value == "") 
					{
						alert("");
						theform.address.focus();
						return false; 
					}
					if (theform.zipcode.value == "" || theform.zipcode.value.length != "6" || isNaN(theform.zipcode.value)) 
					{
						alert("");
						theform.zipcode.focus();
						return false; 
					}
					if (theform.phone.value == "") 
					{
						alert("");
						theform.phone.focus();
						return false; 
					}
					else 
					{ 
						theform.Submit.disabled = true;
						return true;
					}
				}
				
								
				
				
				
				
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