project_type = new Array();
	project_type[0]=new Array('选择',-1,'选择');
	project_type[1]=new Array('室内设计',-1,'选择',1,'酒店、宾馆工程',2,'办公工程',3,'商业工程',4,'文教、医疗工程',5,'住宅、别墅、公寓工程',6,'酒店、宾馆方案',7,'办公方案',8,'商业方案',9,'文教、医疗方案',10,'住宅、别墅、公寓方案');
	project_type[2]=new Array('景观设计',-1,'选择',11,'工程',12,'方案');

	function showProjectType(parentPhoto,classid,p_field,f_field)
	{
		if(parentPhoto==-1) //初始化,需要根据classid来寻找parentPhoto
		{
			for(var i=0;i<project_type.length;i++)
			{
				for(var j=0;j<project_type[i].length;j++)
				{
					if(project_type[i][j]==classid)
					{
						parentPhoto=i;
						break;
					}
				}
			}
		}

		var oSelect = document.all(f_field);
		var strHtml = "<select id='" +f_field+ "' name='"+f_field+"'  class='input_select'></select>";
		oSelect.outerHTML = strHtml;

		for(var i=0;i<project_type.length;i++)
		{
			 document.all(p_field).options[i] = new Option();
			 document.all(p_field).options[i].text = project_type[i][0];
			 document.all(p_field).options[i].value = i ;
		}
		document.all(p_field).selectedIndex = parentPhoto;

		var selectedclassid=0;

		for(var i=0;i<project_type[parentPhoto].length-1;i=i+2)
		{
			 document.all(f_field).options[i/2] = new Option();
			 document.all(f_field).options[i/2].text = project_type[parentPhoto][i+2];
			 document.all(f_field).options[i/2].value = project_type[parentPhoto][i+1];
			 if(project_type[parentPhoto][i+1]==classid)
				selectedclassid=i/2;
		}
		document.all(f_field).selectedIndex = selectedclassid;
		
	}

	function getProjectType(id)
	{
		for(var i=0;i<project_type.length;i++)
		{
			for(var j=0;j<project_type[i].length;j++)
			{
				if(project_type[i][j]==id)
				{
					return project_type[i][j+1];
				}
			}
		}
	}

	function getProjectParentType(id)
	{
		for(var i=0;i<project_type.length;i++)
		{
			for(var j=0;j<project_type[i].length;j++)
			{
				if(project_type[i][j]==id)
				{
					return project_type[i][0];
				}
			}
		}
	}