var PostCategory2 = new Array();PostCategory2[0]=new Array(1,2,'技术支持',8,'商务代表');
PostCategory2[1]=new Array(3,5,'.NET程序员');
PostCategory2[2]=new Array(6);
PostCategory2[3]=new Array(7);
PostCategory2[4]=new Array(9,10,'客服经理');


function PostChange(selPostCategory)
{
	var selPostCategory2 = document.getElementById(selPostCategory.attributes["childcategory"].value);
	var PostCategory1 = -1;	
	if(selPostCategory.selectedIndex>=0)	
		PostCategory1 = selPostCategory.options[selPostCategory.selectedIndex].value;	
	
	while(selPostCategory2.options.length>0)
	{
		selPostCategory2.remove(0);
	}
			
        var alloption = document.createElement("OPTION");
		selPostCategory2.options.add(alloption);	
		alloption.value='0';
		alloption.text='不限分类';
	for(i=0;i<PostCategory2.length;i++)
	{			
		if(PostCategory2[i][0]!=undefined && PostCategory2[i][0] == PostCategory1)
		{		
			for(j=1;j<PostCategory2[i].length;j=j+2)
			{				
				var oOption = document.createElement("OPTION");
				selPostCategory2.options.add(oOption);
				oOption.text = PostCategory2[i][j+1];
			}			
			return;
		}
	}
}