var Category2 = new Array();Category2[0]=new Array(1,8,'商务代表',2,'技术支持');
Category2[1]=new Array(3,5,'.NET程序员');
Category2[2]=new Array(6);
Category2[3]=new Array(7);
Category2[4]=new Array(9,10,'客服经理');

function selCategory1Change(selCategory1)
{
	var selCategory2 = document.getElementById(selCategory1.attributes["sub"].value);

	var CategoryID = -1;	
	if(selCategory1.selectedIndex>=0)	
		CategoryID = selCategory1.options[selCategory1.selectedIndex].value;	
	
	while(selCategory2.options.length>0)
	{
		selCategory2.remove(0);
	}
		var alloption = document.createElement("OPTION");
		selCategory2.options.add(alloption);	
		alloption.value='0';
		alloption.text='不限分类';
	for(i=0;i<Category2.length;i++)
	{			
		if(Category2[i][0]!=undefined && Category2[i][0] == CategoryID)
		{		
			for(j=1;j<Category2[i].length;j=j+2)
			{				
				var oOption = document.createElement("OPTION");
				selCategory2.options.add(oOption);
				oOption.text = Category2[i][j+1];
				oOption.value = Category2[i][j];								
			}			
			return;
		}
	}
}