function zhsearchform()
	{
		var yearary=[];
		var datestyle=['年 ','月 ','日 '];
		var startyear=2006;
		var endyear=2010;
		var morenstartdate='2007-11-13'.split('-')
		var morenenddate='2008-11-13'.split('-')				
		var monthary=[1,2,3,4,5,6,7,8,9,10,11,12];		
		var dayary=[1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31];				
		this.startdateform=['startyear','startmonth','startday']
		this.enddateform=['endyear','endmonth','endday']		
		var classform='classid'
		this.classform=[];
		for(var i=startyear;i<endyear;i++)
		{
			yearary[yearary.length]=i
		}
	
		this.classform[this.classform.length]=['01','化工类展会']
	
		this.classform[this.classform.length]=['02','塑料类展会']
	
		this.classform[this.classform.length]=['03','橡胶类展会']
	
		this.classform[this.classform.length]=['04','涂料类展会']
	
		this.classform[this.classform.length]=['05','机械类展会']
	
		this.classform[this.classform.length]=['06','综合类展会']
	
		this.classform[this.classform.length]=['07','其他展会']
	
		this.classform[this.classform.length]=['08','国外展会']
	
		this.drawstartdate=function(moren)
		{
			
			if(moren==null)
			moren=morenstartdate
			else
			moren=moren.split('-')
			
			if(moren.length!=3)
			moren=morenstartdate
			
			document.write('<select name="'+this.startdateform[0]+'">\n')
			for(var i=0;i<yearary.length;i++)
			{
				mselect=''
				if(yearary[i]==parseInt(moren[0]))
				mselect='selected'			
				document.write('<option value="'+yearary[i]+'" '+mselect+'>'+yearary[i]+'</option>\n')
			}
			document.write('</select>\n')
			document.write(datestyle[0])
			document.write('<select name="'+this.startdateform[1]+'">\n')
			for(var i=0;i<monthary.length;i++)
			{
				mselect=''
				if(monthary[i]==parseInt(moren[1]))
				mselect='selected'						
				document.write('<option value="'+monthary[i]+'" '+mselect+'>'+monthary[i]+'</option>\n')
			}
			document.write('</select>\n')			
			document.write(datestyle[1])	
			document.write('<select name="'+this.startdateform[2]+'" >\n')
			for(var i=0;i<dayary.length;i++)
			{
				mselect=''
				if(dayary[i]==parseInt(moren[2]))
				mselect='selected'			
				document.write('<option value="'+dayary[i]+'" '+mselect+'>'+dayary[i]+'</option>\n')
			}
			document.write('</select>\n')				
			document.write(datestyle[2])		
		}
		
		this.drawenddate=function(moren)
		{
			if(moren==null)
			moren=morenenddate
			else
			moren=moren.split('-')
			if(moren.length!=3)
			moren=morenenddate
			document.write('<select name="'+this.enddateform[0]+'">\n')
			for(var i=0;i<yearary.length;i++)
			{
				mselect=''
				if(yearary[i]==parseInt(moren[0]))
				mselect='selected'			
				document.write('<option value="'+yearary[i]+'" '+mselect+'>'+yearary[i]+'</option>\n')
			}
			document.write('</select>\n')
			document.write(datestyle[0])
			document.write('<select name="'+this.enddateform[1]+'">\n')
			for(var i=0;i<monthary.length;i++)
			{
				mselect=''
				if(monthary[i]==parseInt(moren[1]))
				mselect='selected'						
				document.write('<option value="'+monthary[i]+'" '+mselect+'>'+monthary[i]+'</option>\n')
			}
			document.write('</select>\n')			
			document.write(datestyle[1])	
			document.write('<select name="'+this.enddateform[2]+'" >\n')
			for(var i=0;i<dayary.length;i++)
			{
				mselect=''
				if(dayary[i]==parseInt(moren[2]))
				mselect='selected'			
				document.write('<option value="'+dayary[i]+'" '+mselect+'>'+dayary[i]+'</option>\n')
			}
			document.write('</select>\n')				
			document.write(datestyle[2])		
		}
		
		
		this.drawclass=function(moren,text,style)
		{
			document.write('<select name="'+classform+'" style="'+style+'">\n')
			document.write('<option value="">'+text+'</option>\n')			
			for(var i=0;i<this.classform.length;i++)
			{
				mselect=''
				if(this.classform[i][0]==moren)
				mselect='selected'
				document.write('<option value="'+this.classform[i][0]+'" '+mselect+'>'+this.classform[i][1]+'</option>\n')			
			}
			document.write('</select>\n')
		}
		
		this.formcheck=function(formname)
		{
		var tempstartdate=''
		var tempenddate=''
		tempstartdate=formname[this.startdateform[0]].value+'-'+formname[this.startdateform[1]].value+'-'+formname[this.startdateform[2]].value
		tempenddate=formname[this.enddateform[0]].value+'-'+formname[this.enddateform[1]].value+'-'+formname[this.enddateform[2]].value		
			with(formname)
			{
				execScript('DateValidate = isdate("'+tempstartdate+'")','vbscript');
				if(!DateValidate)
				{
					alert("开始时间不是正确的日期");
					formname[this.startdateform[0]].focus();
					return false
				}			
				execScript('DateValidate = isdate("'+tempenddate+'")','vbscript');
				if(!DateValidate)
				{
					alert("结束时间不是正确的日期");
					formname[this.enddateform[0]].focus();
					return false
				}
				execScript('DateValidate = datediff("d","'+tempenddate+'","'+tempstartdate+'")','vbscript');
				if(DateValidate>=0)
				{
					alert("结束时间不能早于开始时间！");
					formname[this.enddateform[0]].focus();
					return false
				}				
			}
		}
		
		return this;
	}